Update Wiki Syntax Help to use HTTPS links instead of HTTP (#41469).

git-svn-id: https://svn.redmine.org/redmine/trunk@23117 e93f8b46-1217-0410-a6f0-8f06a7374b81

38 files changed, 223 insertions, 223 deletions

diff --git a/app/views/help/wiki_syntax/common_mark/de/wiki_syntax_detailed_common_mark.html.erb b/app/views/help/wiki_syntax/common_mark/de/wiki_syntax_detailed_common_mark.html.erb
index 4f2ae17e1..4312926ba 100644
--- a/app/views/help/wiki_syntax/common_mark/de/wiki_syntax_detailed_common_mark.html.erb
+++ b/app/views/help/wiki_syntax/common_mark/de/wiki_syntax_detailed_common_mark.html.erb
@@ -182,24 +182,24 @@
         <p>URLs (beginnend mit: www, http, https, ftp, ftps, sftp und sftps) und E-Mail-Adressen werden automatisch in anklickbare Links umgewandelt:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>Anzeige: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>Anzeige: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>Wenn Sie anstelle der URL einen bestimmten Text anzeigen möchten, können Sie die Standard-Markdown-Syntax verwenden:</p>
 
 <pre>
-[Redmine Webseite](http://www.redmine.org)
+[Redmine Webseite](https://www.redmine.org)
 </pre>
 
-        <p>Anzeige: <a href="http://www.redmine.org" class="external">Redmine Webseite</a></p>
+        <p>Anzeige: <a href="https://www.redmine.org" class="external">Redmine Webseite</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>Textformatierung</h2>
 
 
-    <p>Für Dinge wie Überschriften, Fettdruck, Tabellen, Listen unterstützt Redmine die Markdown-Syntax. Informationen zur Verwendung dieser Funktionen <a class="external" href="http://daringfireball.net/projects/markdown/syntax">http://daringfireball.net/projects/markdown/syntax</a> for information on using any of these features.  Ein paar Beispiele sind unten enthalten, aber die Engine unterstützt noch viel mehr Funktionen.</p>
+    <p>Für Dinge wie Überschriften, Fettdruck, Tabellen, Listen unterstützt Redmine die Markdown-Syntax. Informationen zur Verwendung dieser Funktionen <a class="external" href="https://daringfireball.net/projects/markdown/syntax">https://daringfireball.net/projects/markdown/syntax</a> for information on using any of these features.  Ein paar Beispiele sind unten enthalten, aber die Engine unterstützt noch viel mehr Funktionen.</p>
 
         <h3><a name="6" class="wiki-page"></a>Schriftstil</h3>
 
@@ -315,7 +315,7 @@ Es kann durch Klicken auf einen Link erweitert werden.
 
     <h2><a name="13" class="wiki-page"></a>Code-Hervorhebung</h2>
 
-        <p>Die standardmäßige Code-Hervorhebung basiert auf <a href="http://rouge.jneen.net/" class="external">Rouge</a>, einem reinen Ruby-Code-Highlighter. Rouge unterstützt viele häufig verwendete Sprachen wie <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> und <strong>yaml</strong> (yml) - die Namen in Klammern sind Aliase. Bitte beachten Sie die <a href="<%= help_code_highlighting_path %>" target="_blank">Liste der Sprachen, die vom Redmine-Code-Highlighter unterstützt werden</a>.</p>
+        <p>Die standardmäßige Code-Hervorhebung basiert auf <a href="https://rouge.jneen.net/" class="external">Rouge</a>, einem reinen Ruby-Code-Highlighter. Rouge unterstützt viele häufig verwendete Sprachen wie <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> und <strong>yaml</strong> (yml) - die Namen in Klammern sind Aliase. Bitte beachten Sie die <a href="<%= help_code_highlighting_path %>" target="_blank">Liste der Sprachen, die vom Redmine-Code-Highlighter unterstützt werden</a>.</p>
 
     <p>Sie können Code an jeder Stelle hervorheben, die Wiki-Formatierung mit dieser Syntax unterstützt (beachten Sie, dass beim Sprachnamen oder Alias ​​die Groß-/Kleinschreibung nicht beachtet wird):</p>
 
diff --git a/app/views/help/wiki_syntax/common_mark/en/wiki_syntax_detailed_common_mark.html.erb b/app/views/help/wiki_syntax/common_mark/en/wiki_syntax_detailed_common_mark.html.erb
index 6e195403f..a47a570f1 100644
--- a/app/views/help/wiki_syntax/common_mark/en/wiki_syntax_detailed_common_mark.html.erb
+++ b/app/views/help/wiki_syntax/common_mark/en/wiki_syntax_detailed_common_mark.html.erb
@@ -181,18 +181,18 @@
         <p>URLs (starting with: www, http, https, ftp, ftps, sftp and sftps) and email addresses are automatically turned into clickable links:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>displays: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>displays: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>If you want to display a specific text instead of the URL, you can use the standard markdown syntax:</p>
 
 <pre>
-[Redmine web site](http://www.redmine.org)
+[Redmine web site](https://www.redmine.org)
 </pre>
 
-        <p>displays: <a href="http://www.redmine.org" class="external">Redmine web site</a></p>
+        <p>displays: <a href="https://www.redmine.org" class="external">Redmine web site</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>Text formatting</h2>
@@ -312,7 +312,7 @@ It can be expanded by clicking a link.
 
     <h2><a name="13" class="wiki-page"></a>Code highlighting</h2>
 
-    <p>Default code highlighting relies on <a href="http://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
+    <p>Default code highlighting relies on <a href="https://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
 
     <p>You can highlight code at any place that supports wiki formatting using this syntax (note that the language name or alias is case-insensitive):</p>
 
diff --git a/app/views/help/wiki_syntax/common_mark/ta-in/wiki_syntax_detailed_common_mark.html.erb b/app/views/help/wiki_syntax/common_mark/ta-in/wiki_syntax_detailed_common_mark.html.erb
index 01e580d8f..09941349f 100644
--- a/app/views/help/wiki_syntax/common_mark/ta-in/wiki_syntax_detailed_common_mark.html.erb
+++ b/app/views/help/wiki_syntax/common_mark/ta-in/wiki_syntax_detailed_common_mark.html.erb
@@ -181,18 +181,18 @@
 <p>URLs (starting with: www, http, https, ftp, ftps, sftp and sftps) மின்னஞ்சல் முகவரிகள் தானாக கிளிக் செய்யக்கூடிய இணைப்புகளாக மாற்றப்படும்:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-<p>காட்சிகள்: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+<p>காட்சிகள்: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
 <p>URL க்கு பதிலாக ஒரு குறிப்பிட்ட உரையைக் காட்ட விரும்பினால், நீங்கள் நிலையான மார்க் டவுன் தொடரியல் பயன்படுத்தலாம்:</p>
 
 <pre>
-[Redmine web site](http://www.redmine.org)
+[Redmine web site](https://www.redmine.org)
 </pre>
 
-        <p>காட்சிகள்: <a href="http://www.redmine.org" class="external">ரெட்மைன் வலைத்தளம்</a></p>
+        <p>காட்சிகள்: <a href="https://www.redmine.org" class="external">ரெட்மைன் வலைத்தளம்</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>உரை வடிவமைத்தல்</h2>
@@ -311,7 +311,7 @@ http://www.redmine.org, someone@foo.bar
 
   <h2><a name="13" class="wiki-page"></a>குறியீடு சிறப்பம்சமாக</h2>
 
-    <p>இயல்புநிலை குறியீடு சிறப்பம்சத்தை நம்பியுள்ளது <a href="http://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
+    <p>இயல்புநிலை குறியீடு சிறப்பம்சத்தை நம்பியுள்ளது <a href="https://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
 
     <p>இந்த தொடரியல் பயன்படுத்தி விக்கி வடிவமைப்பை ஆதரிக்கும் எந்த இடத்திலும் குறியீட்டை முன்னிலைப்படுத்தலாம் (மொழி பெயர் அல்லது மாற்று வழக்கு-உணர்வற்றது என்பதை நினைவில் கொள்க):</p>
 
diff --git a/app/views/help/wiki_syntax/markdown/bg/wiki_syntax_detailed_markdown.html.erb b/app/views/help/wiki_syntax/markdown/bg/wiki_syntax_detailed_markdown.html.erb
index 9d324c261..4ea1da594 100644
--- a/app/views/help/wiki_syntax/markdown/bg/wiki_syntax_detailed_markdown.html.erb
+++ b/app/views/help/wiki_syntax/markdown/bg/wiki_syntax_detailed_markdown.html.erb
@@ -180,24 +180,24 @@
         <p>URLs (starting with: www, http, https, ftp, ftps, sftp and sftps) and email addresses are automatically turned into clickable links:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>displays: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>displays: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>If you want to display a specific text instead of the URL, you can use the standard markdown syntax:</p>
 
 <pre>
-[Redmine web site](http://www.redmine.org)
+[Redmine web site](https://www.redmine.org)
 </pre>
 
-        <p>displays: <a href="http://www.redmine.org" class="external">Redmine web site</a></p>
+        <p>displays: <a href="https://www.redmine.org" class="external">Redmine web site</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>Text formatting</h2>
 
 
-    <p>For things such as headlines, bold, tables, lists, Redmine supports Markdown syntax.  See <a class="external" href="http://daringfireball.net/projects/markdown/syntax">http://daringfireball.net/projects/markdown/syntax</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
+    <p>For things such as headlines, bold, tables, lists, Redmine supports Markdown syntax.  See <a class="external" href="https://daringfireball.net/projects/markdown/syntax">https://daringfireball.net/projects/markdown/syntax</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
 
         <h3><a name="6" class="wiki-page"></a>Font style</h3>
 
@@ -314,7 +314,7 @@ It can be expanded by clicking a link.
 
     <h2><a name="13" class="wiki-page"></a>Code highlighting</h2>
 
-    <p>Default code highlighting relies on <a href="http://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
+    <p>Default code highlighting relies on <a href="https://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
 
     <p>You can highlight code at any place that supports wiki formatting using this syntax (note that the language name or alias is case-insensitive):</p>
 
diff --git a/app/views/help/wiki_syntax/markdown/ca/wiki_syntax_detailed_markdown.html.erb b/app/views/help/wiki_syntax/markdown/ca/wiki_syntax_detailed_markdown.html.erb
index 9d324c261..4ea1da594 100644
--- a/app/views/help/wiki_syntax/markdown/ca/wiki_syntax_detailed_markdown.html.erb
+++ b/app/views/help/wiki_syntax/markdown/ca/wiki_syntax_detailed_markdown.html.erb
@@ -180,24 +180,24 @@
         <p>URLs (starting with: www, http, https, ftp, ftps, sftp and sftps) and email addresses are automatically turned into clickable links:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>displays: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>displays: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>If you want to display a specific text instead of the URL, you can use the standard markdown syntax:</p>
 
 <pre>
-[Redmine web site](http://www.redmine.org)
+[Redmine web site](https://www.redmine.org)
 </pre>
 
-        <p>displays: <a href="http://www.redmine.org" class="external">Redmine web site</a></p>
+        <p>displays: <a href="https://www.redmine.org" class="external">Redmine web site</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>Text formatting</h2>
 
 
-    <p>For things such as headlines, bold, tables, lists, Redmine supports Markdown syntax.  See <a class="external" href="http://daringfireball.net/projects/markdown/syntax">http://daringfireball.net/projects/markdown/syntax</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
+    <p>For things such as headlines, bold, tables, lists, Redmine supports Markdown syntax.  See <a class="external" href="https://daringfireball.net/projects/markdown/syntax">https://daringfireball.net/projects/markdown/syntax</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
 
         <h3><a name="6" class="wiki-page"></a>Font style</h3>
 
@@ -314,7 +314,7 @@ It can be expanded by clicking a link.
 
     <h2><a name="13" class="wiki-page"></a>Code highlighting</h2>
 
-    <p>Default code highlighting relies on <a href="http://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
+    <p>Default code highlighting relies on <a href="https://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
 
     <p>You can highlight code at any place that supports wiki formatting using this syntax (note that the language name or alias is case-insensitive):</p>
 
diff --git a/app/views/help/wiki_syntax/markdown/cs/wiki_syntax_detailed_markdown.html.erb b/app/views/help/wiki_syntax/markdown/cs/wiki_syntax_detailed_markdown.html.erb
index 81cf7733f..25b7b6b92 100644
--- a/app/views/help/wiki_syntax/markdown/cs/wiki_syntax_detailed_markdown.html.erb
+++ b/app/views/help/wiki_syntax/markdown/cs/wiki_syntax_detailed_markdown.html.erb
@@ -179,24 +179,24 @@
         <p>URL (začínající: www, http, https, ftp, ftps, sftp a sftps) a e-mailové adresy jsou automaticky převedeny na klikací odkazy:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>zobrazí: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>zobrazí: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>Jestliže chcete zobrazit určitý text místo URL, můžete použít standardní syntaxi Textile:</p>
 
 <pre>
-"Webová stránka Redmine":http://www.redmine.org
+"Webová stránka Redmine":https://www.redmine.org
 </pre>
 
-        <p>zobrazí: <a href="http://www.redmine.org" class="external">Webová stránka Redmine</a></p>
+        <p>zobrazí: <a href="https://www.redmine.org" class="external">Webová stránka Redmine</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>Formátování textu</h2>
 
 
-    <p>Pro nadpisy, tučný text, tabulky a seznamy, Redmine podporuje syntaxi Markdown. Podívejte se na <a class="external" href="http://daringfireball.net/projects/markdown/syntax">http://daringfireball.net/projects/markdown/syntax</a> pro informace o využití těchto vlastností. Několik příkladů je uvedeno níže, ale Markdown toho dokáže mnohem víc.</p>
+    <p>Pro nadpisy, tučný text, tabulky a seznamy, Redmine podporuje syntaxi Markdown. Podívejte se na <a class="external" href="https://daringfireball.net/projects/markdown/syntax">https://daringfireball.net/projects/markdown/syntax</a> pro informace o využití těchto vlastností. Několik příkladů je uvedeno níže, ale Markdown toho dokáže mnohem víc.</p>
 
         <h3><a name="6" class="wiki-page"></a>Styly písma</h3>
 
@@ -311,7 +311,7 @@ Pro rozbalení klikněte na odkaz.
 
     <h2><a name="13" class="wiki-page"></a>Zvýrazňování kódu</h2>
 
-    <p>Výchozí zvýrazňování kódu závisí na <a href="http://rouge.jneen.net/" class="external">Rouge</a>, zvýrazňovači kódu napsanému v Ruby. Rouge podporuje mnoho běžně používaných jazyků, jako jsou <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) - jména v závorkách jsou aliasy. Podívejte se, prosím, na <a href="<%= help_code_highlighting_path %>" target="_blank">seznam jazyků poporovaných zvýrazňovačem kódu Redmine</a>.</p>
+    <p>Výchozí zvýrazňování kódu závisí na <a href="https://rouge.jneen.net/" class="external">Rouge</a>, zvýrazňovači kódu napsanému v Ruby. Rouge podporuje mnoho běžně používaných jazyků, jako jsou <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) - jména v závorkách jsou aliasy. Podívejte se, prosím, na <a href="<%= help_code_highlighting_path %>" target="_blank">seznam jazyků poporovaných zvýrazňovačem kódu Redmine</a>.</p>
 
     <p>Kód můžete na stránce zvýraznit pomocí následující syntaxe (záleží na velikosti písma jazyku nebo aliasu):</p>
 
diff --git a/app/views/help/wiki_syntax/markdown/de/wiki_syntax_detailed_markdown.html.erb b/app/views/help/wiki_syntax/markdown/de/wiki_syntax_detailed_markdown.html.erb
index 33ac17afe..bca596409 100644
--- a/app/views/help/wiki_syntax/markdown/de/wiki_syntax_detailed_markdown.html.erb
+++ b/app/views/help/wiki_syntax/markdown/de/wiki_syntax_detailed_markdown.html.erb
@@ -180,24 +180,24 @@
         <p>URLs (beginnend mit: www, http, https, ftp, ftps, sftp und sftps) und E-Mail-Adressen werden automatisch in anklickbare Links umgewandelt:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>Anzeige: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>Anzeige: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>Wenn Sie anstelle der URL einen bestimmten Text anzeigen möchten, können Sie die Standard-Markdown-Syntax verwenden:</p>
 
 <pre>
-[Redmine Webseite](http://www.redmine.org)
+[Redmine Webseite](https://www.redmine.org)
 </pre>
 
-        <p>Anzeige: <a href="http://www.redmine.org" class="external">Redmine Webseite</a></p>
+        <p>Anzeige: <a href="https://www.redmine.org" class="external">Redmine Webseite</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>Textformatierung</h2>
 
 
-    <p>Für Dinge wie Überschriften, Fettdruck, Tabellen, Listen unterstützt Redmine die Markdown-Syntax. Informationen zur Verwendung dieser Funktionen <a class="external" href="http://daringfireball.net/projects/markdown/syntax">http://daringfireball.net/projects/markdown/syntax</a> for information on using any of these features.  Ein paar Beispiele sind unten enthalten, aber die Engine unterstützt noch viel mehr Funktionen.</p>
+    <p>Für Dinge wie Überschriften, Fettdruck, Tabellen, Listen unterstützt Redmine die Markdown-Syntax. Informationen zur Verwendung dieser Funktionen <a class="external" href="https://daringfireball.net/projects/markdown/syntax">https://daringfireball.net/projects/markdown/syntax</a> for information on using any of these features.  Ein paar Beispiele sind unten enthalten, aber die Engine unterstützt noch viel mehr Funktionen.</p>
 
         <h3><a name="6" class="wiki-page"></a>Schriftstil</h3>
 
@@ -315,7 +315,7 @@ Es kann durch Klicken auf einen Link erweitert werden.
 
     <h2><a name="13" class="wiki-page"></a>Code-Hervorhebung</h2>
 
-        <p>Die standardmäßige Code-Hervorhebung basiert auf <a href="http://rouge.jneen.net/" class="external">Rouge</a>, einem reinen Ruby-Code-Highlighter. Rouge unterstützt viele häufig verwendete Sprachen wie <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> und <strong>yaml</strong> (yml) - die Namen in Klammern sind Aliase. Bitte beachten Sie die <a href="<%= help_code_highlighting_path %>" target="_blank">Liste der Sprachen, die vom Redmine-Code-Highlighter unterstützt werden</a>.</p>
+        <p>Die standardmäßige Code-Hervorhebung basiert auf <a href="https://rouge.jneen.net/" class="external">Rouge</a>, einem reinen Ruby-Code-Highlighter. Rouge unterstützt viele häufig verwendete Sprachen wie <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> und <strong>yaml</strong> (yml) - die Namen in Klammern sind Aliase. Bitte beachten Sie die <a href="<%= help_code_highlighting_path %>" target="_blank">Liste der Sprachen, die vom Redmine-Code-Highlighter unterstützt werden</a>.</p>
 
     <p>Sie können Code an jeder Stelle hervorheben, die Wiki-Formatierung mit dieser Syntax unterstützt (beachten Sie, dass beim Sprachnamen oder Alias ​​die Groß-/Kleinschreibung nicht beachtet wird):</p>
 
diff --git a/app/views/help/wiki_syntax/markdown/en/wiki_syntax_detailed_markdown.html.erb b/app/views/help/wiki_syntax/markdown/en/wiki_syntax_detailed_markdown.html.erb
index 9d324c261..4ea1da594 100644
--- a/app/views/help/wiki_syntax/markdown/en/wiki_syntax_detailed_markdown.html.erb
+++ b/app/views/help/wiki_syntax/markdown/en/wiki_syntax_detailed_markdown.html.erb
@@ -180,24 +180,24 @@
         <p>URLs (starting with: www, http, https, ftp, ftps, sftp and sftps) and email addresses are automatically turned into clickable links:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>displays: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>displays: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>If you want to display a specific text instead of the URL, you can use the standard markdown syntax:</p>
 
 <pre>
-[Redmine web site](http://www.redmine.org)
+[Redmine web site](https://www.redmine.org)
 </pre>
 
-        <p>displays: <a href="http://www.redmine.org" class="external">Redmine web site</a></p>
+        <p>displays: <a href="https://www.redmine.org" class="external">Redmine web site</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>Text formatting</h2>
 
 
-    <p>For things such as headlines, bold, tables, lists, Redmine supports Markdown syntax.  See <a class="external" href="http://daringfireball.net/projects/markdown/syntax">http://daringfireball.net/projects/markdown/syntax</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
+    <p>For things such as headlines, bold, tables, lists, Redmine supports Markdown syntax.  See <a class="external" href="https://daringfireball.net/projects/markdown/syntax">https://daringfireball.net/projects/markdown/syntax</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
 
         <h3><a name="6" class="wiki-page"></a>Font style</h3>
 
@@ -314,7 +314,7 @@ It can be expanded by clicking a link.
 
     <h2><a name="13" class="wiki-page"></a>Code highlighting</h2>
 
-    <p>Default code highlighting relies on <a href="http://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
+    <p>Default code highlighting relies on <a href="https://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
 
     <p>You can highlight code at any place that supports wiki formatting using this syntax (note that the language name or alias is case-insensitive):</p>
 
diff --git a/app/views/help/wiki_syntax/markdown/es-pa/wiki_syntax_detailed_markdown.html.erb b/app/views/help/wiki_syntax/markdown/es-pa/wiki_syntax_detailed_markdown.html.erb
index 9d324c261..4ea1da594 100644
--- a/app/views/help/wiki_syntax/markdown/es-pa/wiki_syntax_detailed_markdown.html.erb
+++ b/app/views/help/wiki_syntax/markdown/es-pa/wiki_syntax_detailed_markdown.html.erb
@@ -180,24 +180,24 @@
         <p>URLs (starting with: www, http, https, ftp, ftps, sftp and sftps) and email addresses are automatically turned into clickable links:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>displays: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>displays: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>If you want to display a specific text instead of the URL, you can use the standard markdown syntax:</p>
 
 <pre>
-[Redmine web site](http://www.redmine.org)
+[Redmine web site](https://www.redmine.org)
 </pre>
 
-        <p>displays: <a href="http://www.redmine.org" class="external">Redmine web site</a></p>
+        <p>displays: <a href="https://www.redmine.org" class="external">Redmine web site</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>Text formatting</h2>
 
 
-    <p>For things such as headlines, bold, tables, lists, Redmine supports Markdown syntax.  See <a class="external" href="http://daringfireball.net/projects/markdown/syntax">http://daringfireball.net/projects/markdown/syntax</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
+    <p>For things such as headlines, bold, tables, lists, Redmine supports Markdown syntax.  See <a class="external" href="https://daringfireball.net/projects/markdown/syntax">https://daringfireball.net/projects/markdown/syntax</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
 
         <h3><a name="6" class="wiki-page"></a>Font style</h3>
 
@@ -314,7 +314,7 @@ It can be expanded by clicking a link.
 
     <h2><a name="13" class="wiki-page"></a>Code highlighting</h2>
 
-    <p>Default code highlighting relies on <a href="http://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
+    <p>Default code highlighting relies on <a href="https://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
 
     <p>You can highlight code at any place that supports wiki formatting using this syntax (note that the language name or alias is case-insensitive):</p>
 
diff --git a/app/views/help/wiki_syntax/markdown/es/wiki_syntax_detailed_markdown.html.erb b/app/views/help/wiki_syntax/markdown/es/wiki_syntax_detailed_markdown.html.erb
index 9d324c261..4ea1da594 100644
--- a/app/views/help/wiki_syntax/markdown/es/wiki_syntax_detailed_markdown.html.erb
+++ b/app/views/help/wiki_syntax/markdown/es/wiki_syntax_detailed_markdown.html.erb
@@ -180,24 +180,24 @@
         <p>URLs (starting with: www, http, https, ftp, ftps, sftp and sftps) and email addresses are automatically turned into clickable links:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>displays: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>displays: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>If you want to display a specific text instead of the URL, you can use the standard markdown syntax:</p>
 
 <pre>
-[Redmine web site](http://www.redmine.org)
+[Redmine web site](https://www.redmine.org)
 </pre>
 
-        <p>displays: <a href="http://www.redmine.org" class="external">Redmine web site</a></p>
+        <p>displays: <a href="https://www.redmine.org" class="external">Redmine web site</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>Text formatting</h2>
 
 
-    <p>For things such as headlines, bold, tables, lists, Redmine supports Markdown syntax.  See <a class="external" href="http://daringfireball.net/projects/markdown/syntax">http://daringfireball.net/projects/markdown/syntax</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
+    <p>For things such as headlines, bold, tables, lists, Redmine supports Markdown syntax.  See <a class="external" href="https://daringfireball.net/projects/markdown/syntax">https://daringfireball.net/projects/markdown/syntax</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
 
         <h3><a name="6" class="wiki-page"></a>Font style</h3>
 
@@ -314,7 +314,7 @@ It can be expanded by clicking a link.
 
     <h2><a name="13" class="wiki-page"></a>Code highlighting</h2>
 
-    <p>Default code highlighting relies on <a href="http://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
+    <p>Default code highlighting relies on <a href="https://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
 
     <p>You can highlight code at any place that supports wiki formatting using this syntax (note that the language name or alias is case-insensitive):</p>
 
diff --git a/app/views/help/wiki_syntax/markdown/fr/wiki_syntax_detailed_markdown.html.erb b/app/views/help/wiki_syntax/markdown/fr/wiki_syntax_detailed_markdown.html.erb
index 9d324c261..4ea1da594 100644
--- a/app/views/help/wiki_syntax/markdown/fr/wiki_syntax_detailed_markdown.html.erb
+++ b/app/views/help/wiki_syntax/markdown/fr/wiki_syntax_detailed_markdown.html.erb
@@ -180,24 +180,24 @@
         <p>URLs (starting with: www, http, https, ftp, ftps, sftp and sftps) and email addresses are automatically turned into clickable links:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>displays: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>displays: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>If you want to display a specific text instead of the URL, you can use the standard markdown syntax:</p>
 
 <pre>
-[Redmine web site](http://www.redmine.org)
+[Redmine web site](https://www.redmine.org)
 </pre>
 
-        <p>displays: <a href="http://www.redmine.org" class="external">Redmine web site</a></p>
+        <p>displays: <a href="https://www.redmine.org" class="external">Redmine web site</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>Text formatting</h2>
 
 
-    <p>For things such as headlines, bold, tables, lists, Redmine supports Markdown syntax.  See <a class="external" href="http://daringfireball.net/projects/markdown/syntax">http://daringfireball.net/projects/markdown/syntax</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
+    <p>For things such as headlines, bold, tables, lists, Redmine supports Markdown syntax.  See <a class="external" href="https://daringfireball.net/projects/markdown/syntax">https://daringfireball.net/projects/markdown/syntax</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
 
         <h3><a name="6" class="wiki-page"></a>Font style</h3>
 
@@ -314,7 +314,7 @@ It can be expanded by clicking a link.
 
     <h2><a name="13" class="wiki-page"></a>Code highlighting</h2>
 
-    <p>Default code highlighting relies on <a href="http://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
+    <p>Default code highlighting relies on <a href="https://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
 
     <p>You can highlight code at any place that supports wiki formatting using this syntax (note that the language name or alias is case-insensitive):</p>
 
diff --git a/app/views/help/wiki_syntax/markdown/gl/wiki_syntax_detailed_markdown.html.erb b/app/views/help/wiki_syntax/markdown/gl/wiki_syntax_detailed_markdown.html.erb
index 2e73e1519..7661bcf26 100644
--- a/app/views/help/wiki_syntax/markdown/gl/wiki_syntax_detailed_markdown.html.erb
+++ b/app/views/help/wiki_syntax/markdown/gl/wiki_syntax_detailed_markdown.html.erb
@@ -180,24 +180,24 @@
         <p>URLs (starting with: www, http, https, ftp, ftps, sftp and sftps) and email addresses are automatically turned into clickable links:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>displays: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>displays: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>If you want to display a specific text instead of the URL, you can use the standard markdown syntax:</p>
 
 <pre>
-[Redmine web site](http://www.redmine.org)
+[Redmine web site](https://www.redmine.org)
 </pre>
 
-        <p>displays: <a href="http://www.redmine.org" class="external">Redmine web site</a></p>
+        <p>displays: <a href="https://www.redmine.org" class="external">Redmine web site</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>Text formatting</h2>
 
 
-    <p>For things such as headlines, bold, tables, lists, Redmine supports Markdown syntax.  See <a class="external" href="http://daringfireball.net/projects/markdown/syntax">http://daringfireball.net/projects/markdown/syntax</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
+    <p>For things such as headlines, bold, tables, lists, Redmine supports Markdown syntax.  See <a class="external" href="https://daringfireball.net/projects/markdown/syntax">https://daringfireball.net/projects/markdown/syntax</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
 
         <h3><a name="6" class="wiki-page"></a>Font style</h3>
 
@@ -313,7 +313,7 @@ It can be expanded by clicking a link.
 
     <h2><a name="13" class="wiki-page"></a>Code highlighting</h2>
 
-    <p>Default code highlighting relies on <a href="http://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
+    <p>Default code highlighting relies on <a href="https://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
 
     <p>You can highlight code at any place that supports wiki formatting using this syntax (note that the language name or alias is case-insensitive):</p>
 
diff --git a/app/views/help/wiki_syntax/markdown/ja/wiki_syntax_detailed_markdown.html.erb b/app/views/help/wiki_syntax/markdown/ja/wiki_syntax_detailed_markdown.html.erb
index 237fa99ff..f3e9319ad 100644
--- a/app/views/help/wiki_syntax/markdown/ja/wiki_syntax_detailed_markdown.html.erb
+++ b/app/views/help/wiki_syntax/markdown/ja/wiki_syntax_detailed_markdown.html.erb
@@ -180,24 +180,24 @@
         <p>URL(starting with: www, http, https, ftp, ftps, sftp and sftps)とメールアドレスは自動的にリンクになります:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>上記記述の表示例です: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>上記記述の表示例です: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>URLのかわりに別のテキストを表示させたい場合は、通常のMarkdown記法が利用できます:</p>
 
 <pre>
-[Redmine web site](http://www.redmine.org)
+[Redmine web site](https://www.redmine.org)
 </pre>
 
-        <p>上記記述の表示例です: <a href="http://www.redmine.org" class="external">Redmine web site</a></p>
+        <p>上記記述の表示例です: <a href="https://www.redmine.org" class="external">Redmine web site</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>テキストの書式</h2>
 
 
-    <p>見出し、太字、テーブル、リスト等は、RedmineはMarkdownでの記述に対応しています。Markdownの詳細は <a class="external" href="http://daringfireball.net/projects/markdown/syntax">http://daringfireball.net/projects/markdown/syntax</a> を参照してください。Markdownの一例を以下に示しますが、実際にはここで取り上げた以外の記法にも対応しています。</p>
+    <p>見出し、太字、テーブル、リスト等は、RedmineはMarkdownでの記述に対応しています。Markdownの詳細は <a class="external" href="https://daringfireball.net/projects/markdown/syntax">https://daringfireball.net/projects/markdown/syntax</a> を参照してください。Markdownの一例を以下に示しますが、実際にはここで取り上げた以外の記法にも対応しています。</p>
 
         <h3><a name="6" class="wiki-page"></a>文字の書式</h3>
 
@@ -312,7 +312,7 @@ To go live, all you need to add is a database and a web server.
 
     <h2><a name="13" class="wiki-page"></a>コードハイライト</h2>
 
-    <p>RedmineはRubyで記述されたコードハイライト用ライブラリ <a href="http://rouge.jneen.net/" class="external">Rouge</a> を使用しています。Rougeは <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong>, <strong>yaml</strong> (yml) など一般的に使われている多数の言語に対応しています（括弧内の名前はコードハイライトの指定に利用できる別名です）。全対応言語の一覧は <a href="<%= help_code_highlighting_path %>" target="_blank">List of languages supported by Redmine code highlighter</a> を参照してください。</p>
+    <p>RedmineはRubyで記述されたコードハイライト用ライブラリ <a href="https://rouge.jneen.net/" class="external">Rouge</a> を使用しています。Rougeは <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong>, <strong>yaml</strong> (yml) など一般的に使われている多数の言語に対応しています（括弧内の名前はコードハイライトの指定に利用できる別名です）。全対応言語の一覧は <a href="<%= help_code_highlighting_path %>" target="_blank">List of languages supported by Redmine code highlighter</a> を参照してください。</p>
 
     <p>Wiki記法に対応している箇所であればどこでも以下の記述によりコードハイライトが利用できます (言語名・別名では大文字・小文字は区別されません):</p>
 
diff --git a/app/views/help/wiki_syntax/markdown/ko/wiki_syntax_detailed_markdown.html.erb b/app/views/help/wiki_syntax/markdown/ko/wiki_syntax_detailed_markdown.html.erb
index 9d324c261..4ea1da594 100644
--- a/app/views/help/wiki_syntax/markdown/ko/wiki_syntax_detailed_markdown.html.erb
+++ b/app/views/help/wiki_syntax/markdown/ko/wiki_syntax_detailed_markdown.html.erb
@@ -180,24 +180,24 @@
         <p>URLs (starting with: www, http, https, ftp, ftps, sftp and sftps) and email addresses are automatically turned into clickable links:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>displays: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>displays: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>If you want to display a specific text instead of the URL, you can use the standard markdown syntax:</p>
 
 <pre>
-[Redmine web site](http://www.redmine.org)
+[Redmine web site](https://www.redmine.org)
 </pre>
 
-        <p>displays: <a href="http://www.redmine.org" class="external">Redmine web site</a></p>
+        <p>displays: <a href="https://www.redmine.org" class="external">Redmine web site</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>Text formatting</h2>
 
 
-    <p>For things such as headlines, bold, tables, lists, Redmine supports Markdown syntax.  See <a class="external" href="http://daringfireball.net/projects/markdown/syntax">http://daringfireball.net/projects/markdown/syntax</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
+    <p>For things such as headlines, bold, tables, lists, Redmine supports Markdown syntax.  See <a class="external" href="https://daringfireball.net/projects/markdown/syntax">https://daringfireball.net/projects/markdown/syntax</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
 
         <h3><a name="6" class="wiki-page"></a>Font style</h3>
 
@@ -314,7 +314,7 @@ It can be expanded by clicking a link.
 
     <h2><a name="13" class="wiki-page"></a>Code highlighting</h2>
 
-    <p>Default code highlighting relies on <a href="http://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
+    <p>Default code highlighting relies on <a href="https://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
 
     <p>You can highlight code at any place that supports wiki formatting using this syntax (note that the language name or alias is case-insensitive):</p>
 
diff --git a/app/views/help/wiki_syntax/markdown/nl/wiki_syntax_detailed_markdown.html.erb b/app/views/help/wiki_syntax/markdown/nl/wiki_syntax_detailed_markdown.html.erb
index 9d324c261..4ea1da594 100644
--- a/app/views/help/wiki_syntax/markdown/nl/wiki_syntax_detailed_markdown.html.erb
+++ b/app/views/help/wiki_syntax/markdown/nl/wiki_syntax_detailed_markdown.html.erb
@@ -180,24 +180,24 @@
         <p>URLs (starting with: www, http, https, ftp, ftps, sftp and sftps) and email addresses are automatically turned into clickable links:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>displays: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>displays: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>If you want to display a specific text instead of the URL, you can use the standard markdown syntax:</p>
 
 <pre>
-[Redmine web site](http://www.redmine.org)
+[Redmine web site](https://www.redmine.org)
 </pre>
 
-        <p>displays: <a href="http://www.redmine.org" class="external">Redmine web site</a></p>
+        <p>displays: <a href="https://www.redmine.org" class="external">Redmine web site</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>Text formatting</h2>
 
 
-    <p>For things such as headlines, bold, tables, lists, Redmine supports Markdown syntax.  See <a class="external" href="http://daringfireball.net/projects/markdown/syntax">http://daringfireball.net/projects/markdown/syntax</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
+    <p>For things such as headlines, bold, tables, lists, Redmine supports Markdown syntax.  See <a class="external" href="https://daringfireball.net/projects/markdown/syntax">https://daringfireball.net/projects/markdown/syntax</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
 
         <h3><a name="6" class="wiki-page"></a>Font style</h3>
 
@@ -314,7 +314,7 @@ It can be expanded by clicking a link.
 
     <h2><a name="13" class="wiki-page"></a>Code highlighting</h2>
 
-    <p>Default code highlighting relies on <a href="http://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
+    <p>Default code highlighting relies on <a href="https://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
 
     <p>You can highlight code at any place that supports wiki formatting using this syntax (note that the language name or alias is case-insensitive):</p>
 
diff --git a/app/views/help/wiki_syntax/markdown/pt-br/wiki_syntax_detailed_markdown.html.erb b/app/views/help/wiki_syntax/markdown/pt-br/wiki_syntax_detailed_markdown.html.erb
index 9d324c261..4ea1da594 100644
--- a/app/views/help/wiki_syntax/markdown/pt-br/wiki_syntax_detailed_markdown.html.erb
+++ b/app/views/help/wiki_syntax/markdown/pt-br/wiki_syntax_detailed_markdown.html.erb
@@ -180,24 +180,24 @@
         <p>URLs (starting with: www, http, https, ftp, ftps, sftp and sftps) and email addresses are automatically turned into clickable links:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>displays: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>displays: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>If you want to display a specific text instead of the URL, you can use the standard markdown syntax:</p>
 
 <pre>
-[Redmine web site](http://www.redmine.org)
+[Redmine web site](https://www.redmine.org)
 </pre>
 
-        <p>displays: <a href="http://www.redmine.org" class="external">Redmine web site</a></p>
+        <p>displays: <a href="https://www.redmine.org" class="external">Redmine web site</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>Text formatting</h2>
 
 
-    <p>For things such as headlines, bold, tables, lists, Redmine supports Markdown syntax.  See <a class="external" href="http://daringfireball.net/projects/markdown/syntax">http://daringfireball.net/projects/markdown/syntax</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
+    <p>For things such as headlines, bold, tables, lists, Redmine supports Markdown syntax.  See <a class="external" href="https://daringfireball.net/projects/markdown/syntax">https://daringfireball.net/projects/markdown/syntax</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
 
         <h3><a name="6" class="wiki-page"></a>Font style</h3>
 
@@ -314,7 +314,7 @@ It can be expanded by clicking a link.
 
     <h2><a name="13" class="wiki-page"></a>Code highlighting</h2>
 
-    <p>Default code highlighting relies on <a href="http://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
+    <p>Default code highlighting relies on <a href="https://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
 
     <p>You can highlight code at any place that supports wiki formatting using this syntax (note that the language name or alias is case-insensitive):</p>
 
diff --git a/app/views/help/wiki_syntax/markdown/ta-in/wiki_syntax_detailed_markdown.html.erb b/app/views/help/wiki_syntax/markdown/ta-in/wiki_syntax_detailed_markdown.html.erb
index 90c421fca..f3e7c9fa3 100644
--- a/app/views/help/wiki_syntax/markdown/ta-in/wiki_syntax_detailed_markdown.html.erb
+++ b/app/views/help/wiki_syntax/markdown/ta-in/wiki_syntax_detailed_markdown.html.erb
@@ -180,24 +180,24 @@
         <p>URLs (starting with: www, http, https, ftp, ftps, sftp and sftps) மின்னஞ்சல் முகவரிகள் தானாக கிளிக் செய்யக்கூடிய இணைப்புகளாக மாற்றப்படும்:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>காட்சிகள்: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>காட்சிகள்: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>URL க்கு பதிலாக ஒரு குறிப்பிட்ட உரையைக் காட்ட விரும்பினால், நீங்கள் நிலையான மார்க் டவுன் தொடரியல் பயன்படுத்தலாம்:</p>
 
 <pre>
-[Redmine web site](http://www.redmine.org)
+[Redmine web site](https://www.redmine.org)
 </pre>
 
-        <p>காட்சிகள்: <a href="http://www.redmine.org" class="external">ரெட்மைன் வலைத்தளம்</a></p>
+        <p>காட்சிகள்: <a href="https://www.redmine.org" class="external">ரெட்மைன் வலைத்தளம்</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>உரை வடிவமைத்தல்</h2>
 
 
-    <p>தலைப்புச் செய்திகள், தடித்த, அட்டவணைகள், பட்டியல்கள் போன்ற விஷயங்களுக்கு, ரெட்மைன் மார்க் டவுன் தொடரியல் ஆதரிக்கிறது.  See <a class="external" href="http://daringfireball.net/projects/markdown/syntax">http://daringfireball.net/projects/markdown/syntax</a> இந்த அம்சங்களில் ஏதேனும் ஒன்றைப் பயன்படுத்துவது பற்றிய தகவலுக்கு.  ஒரு சில மாதிரிகள் கீழே சேர்க்கப்பட்டுள்ளன, ஆனால் இயந்திரம் அதைவிட அதிக திறன் கொண்டது.</p>
+    <p>தலைப்புச் செய்திகள், தடித்த, அட்டவணைகள், பட்டியல்கள் போன்ற விஷயங்களுக்கு, ரெட்மைன் மார்க் டவுன் தொடரியல் ஆதரிக்கிறது.  See <a class="external" href="https://daringfireball.net/projects/markdown/syntax">https://daringfireball.net/projects/markdown/syntax</a> இந்த அம்சங்களில் ஏதேனும் ஒன்றைப் பயன்படுத்துவது பற்றிய தகவலுக்கு.  ஒரு சில மாதிரிகள் கீழே சேர்க்கப்பட்டுள்ளன, ஆனால் இயந்திரம் அதைவிட அதிக திறன் கொண்டது.</p>
 
         <h3><a name="6" class="wiki-page"></a>எழுத்துரு வகை</h3>
 
@@ -314,7 +314,7 @@ http://www.redmine.org, someone@foo.bar
 
     <h2><a name="13" class="wiki-page"></a>குறியீடு சிறப்பம்சமாக</h2>
 
-    <p>இயல்புநிலை குறியீடு சிறப்பம்சத்தை நம்பியுள்ளது <a href="http://rouge.jneen.net/" class="external">Rouge</a>, தூய ரூபியில் எழுதப்பட்ட ஒரு தொடரியல் சிறப்பம்சமாக நூலகம். It supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages, where the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
+    <p>இயல்புநிலை குறியீடு சிறப்பம்சத்தை நம்பியுள்ளது <a href="https://rouge.jneen.net/" class="external">Rouge</a>, தூய ரூபியில் எழுதப்பட்ட ஒரு தொடரியல் சிறப்பம்சமாக நூலகம். It supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages, where the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
 
     <p>இந்த தொடரியல் பயன்படுத்தி விக்கி வடிவமைப்பை ஆதரிக்கும் எந்த இடத்திலும் குறியீட்டை முன்னிலைப்படுத்தலாம் (மொழி பெயர் அல்லது மாற்று வழக்கு-உணர்வற்றது என்பதை நினைவில் கொள்க):</p>
 
diff --git a/app/views/help/wiki_syntax/markdown/uk/wiki_syntax_detailed_markdown.html.erb b/app/views/help/wiki_syntax/markdown/uk/wiki_syntax_detailed_markdown.html.erb
index 838bfba3d..7ea412eea 100644
--- a/app/views/help/wiki_syntax/markdown/uk/wiki_syntax_detailed_markdown.html.erb
+++ b/app/views/help/wiki_syntax/markdown/uk/wiki_syntax_detailed_markdown.html.erb
@@ -180,24 +180,24 @@
         <p>URLs (starting with: www, http, https, ftp, ftps, sftp and sftps) and email addresses are automatically turned into clickable links:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>відображаються як: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>відображаються як: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>Якщо ви хочете, відобразити текст замість URL, ви можете використовувати стандартний markdown синтаксис:</p>
 
 <pre>
-[Redmine web site](http://www.redmine.org)
+[Redmine web site](https://www.redmine.org)
 </pre>
 
-        <p>відображається як: <a href="http://www.redmine.org" class="external">Redmine web site</a></p>
+        <p>відображається як: <a href="https://www.redmine.org" class="external">Redmine web site</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>Форматування тексту</h2>
 
 
-    <p>Для таких речей як: заголовки, жирний текст, таблиці, списки, Redmine підтримує Markdown синтаксис. Перегляньте <a class="external" href="http://daringfireball.net/projects/markdown/syntax">http://daringfireball.net/projects/markdown/syntax</a> для отримання інформації як цим користуватись. Нижче наводиться декілька прикладів, але можливості Markdown набагато більщі ніж у наведених прикладах.</p>
+    <p>Для таких речей як: заголовки, жирний текст, таблиці, списки, Redmine підтримує Markdown синтаксис. Перегляньте <a class="external" href="https://daringfireball.net/projects/markdown/syntax">https://daringfireball.net/projects/markdown/syntax</a> для отримання інформації як цим користуватись. Нижче наводиться декілька прикладів, але можливості Markdown набагато більщі ніж у наведених прикладах.</p>
 
         <h3><a name="6" class="wiki-page"></a>Стиль шрифту</h3>
 
@@ -312,7 +312,7 @@ http://www.redmine.org, someone@foo.bar
 
     <h2><a name="13" class="wiki-page"></a>Підсвітка синтаксису коду</h2>
 
-    <p>Default code highlighting relies on <a href="http://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
+    <p>Default code highlighting relies on <a href="https://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
 
     <p>Ви можете виділити підсвіткою код в будь-якому місці, яке підтримує вікі-форматування, використовуючи наступний синтаксис (зверніть увагу, що назва мови або псевдонім не чутливі до регістру):</p>
 
diff --git a/app/views/help/wiki_syntax/markdown/zh-tw/wiki_syntax_detailed_markdown.html.erb b/app/views/help/wiki_syntax/markdown/zh-tw/wiki_syntax_detailed_markdown.html.erb
index ee0449e23..d53b9a0ed 100644
--- a/app/views/help/wiki_syntax/markdown/zh-tw/wiki_syntax_detailed_markdown.html.erb
+++ b/app/views/help/wiki_syntax/markdown/zh-tw/wiki_syntax_detailed_markdown.html.erb
@@ -180,24 +180,24 @@
         <p>URLs (starting with: www, http, https, ftp, ftps, sftp and sftps) and email addresses are automatically turned into clickable links:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>會顯示成： <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>會顯示成： <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>若您想要顯示指定的文字而非該 URL ，您可以使用下列標準的 markdown 語法:</p>
 
 <pre>
-[Redmine web site](http://www.redmine.org)
+[Redmine web site](https://www.redmine.org)
 </pre>
 
-        <p>會顯示成： <a href="http://www.redmine.org" class="external">Redmine web site</a></p>
+        <p>會顯示成： <a href="https://www.redmine.org" class="external">Redmine web site</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>文字格式設定</h2>
 
 
-    <p>對於諸如標題、粗體、表格、清單等項目， Redmine 支援使用 Markdown 語法。 可參考 <a class="external" href="http://daringfireball.net/projects/markdown/syntax">http://daringfireball.net/projects/markdown/syntax</a> 中關於使用這些格式化功能的說明資訊。  下面包含了一些使用範例，但格式化引擎的處理能力遠多於這些簡單的使用範例。</p>
+    <p>對於諸如標題、粗體、表格、清單等項目， Redmine 支援使用 Markdown 語法。 可參考 <a class="external" href="https://daringfireball.net/projects/markdown/syntax">https://daringfireball.net/projects/markdown/syntax</a> 中關於使用這些格式化功能的說明資訊。  下面包含了一些使用範例，但格式化引擎的處理能力遠多於這些簡單的使用範例。</p>
 
         <h3><a name="6" class="wiki-page"></a>字型樣式</h3>
 
@@ -312,7 +312,7 @@ It can be expanded by clicking a link.
 
     <h2><a name="13" class="wiki-page"></a>程式碼醒目提示</h2>
 
-    <p>Default code highlighting relies on <a href="http://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
+    <p>Default code highlighting relies on <a href="https://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
 
     <p>您可載任何支援 Wiki 格式設定的地方，使用這個語法來醒目提示程式碼 (注意語言與其別名的名稱不須區分大小寫)：</p>
 
diff --git a/app/views/help/wiki_syntax/textile/bg/wiki_syntax_detailed_textile.html.erb b/app/views/help/wiki_syntax/textile/bg/wiki_syntax_detailed_textile.html.erb
index 03ed0141f..368804957 100644
--- a/app/views/help/wiki_syntax/textile/bg/wiki_syntax_detailed_textile.html.erb
+++ b/app/views/help/wiki_syntax/textile/bg/wiki_syntax_detailed_textile.html.erb
@@ -172,24 +172,24 @@
         <p>URLs (starting with: www, http, https, ftp, ftps, sftp and sftps) and email addresses are automatically turned into clickable links:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>displays: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>displays: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>If you want to display a specific text instead of the URL, you can use the standard textile syntax:</p>
 
 <pre>
-"Redmine web site":http://www.redmine.org
+"Redmine web site":https://www.redmine.org
 </pre>
 
-        <p>displays: <a href="http://www.redmine.org" class="external">Redmine web site</a></p>
+        <p>displays: <a href="https://www.redmine.org" class="external">Redmine web site</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>Text formatting</h2>
 
 
-    <p>For things such as headlines, bold, tables, lists, Redmine supports Textile syntax.  See <a class="external" href="http://en.wikipedia.org/wiki/Textile_%28markup_language%29">http://en.wikipedia.org/wiki/Textile_(markup_language)</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
+    <p>For things such as headlines, bold, tables, lists, Redmine supports Textile syntax.  See <a class="external" href="https://en.wikipedia.org/wiki/Textile_%28markup_language%29">https://en.wikipedia.org/wiki/Textile_(markup_language)</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
 
         <h3><a name="6" class="wiki-page"></a>Font style</h3>
 
@@ -319,7 +319,7 @@ It can be expanded by clicking a link.
 
     <h2><a name="13" class="wiki-page"></a>Code highlighting</h2>
 
-    <p>Default code highlighting relies on <a href="http://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
+    <p>Default code highlighting relies on <a href="https://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
 
     <p>You can highlight code at any place that supports wiki formatting using this syntax (note that the language name or alias is case-insensitive):</p>
 
diff --git a/app/views/help/wiki_syntax/textile/ca/wiki_syntax_detailed_textile.html.erb b/app/views/help/wiki_syntax/textile/ca/wiki_syntax_detailed_textile.html.erb
index 03ed0141f..368804957 100644
--- a/app/views/help/wiki_syntax/textile/ca/wiki_syntax_detailed_textile.html.erb
+++ b/app/views/help/wiki_syntax/textile/ca/wiki_syntax_detailed_textile.html.erb
@@ -172,24 +172,24 @@
         <p>URLs (starting with: www, http, https, ftp, ftps, sftp and sftps) and email addresses are automatically turned into clickable links:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>displays: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>displays: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>If you want to display a specific text instead of the URL, you can use the standard textile syntax:</p>
 
 <pre>
-"Redmine web site":http://www.redmine.org
+"Redmine web site":https://www.redmine.org
 </pre>
 
-        <p>displays: <a href="http://www.redmine.org" class="external">Redmine web site</a></p>
+        <p>displays: <a href="https://www.redmine.org" class="external">Redmine web site</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>Text formatting</h2>
 
 
-    <p>For things such as headlines, bold, tables, lists, Redmine supports Textile syntax.  See <a class="external" href="http://en.wikipedia.org/wiki/Textile_%28markup_language%29">http://en.wikipedia.org/wiki/Textile_(markup_language)</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
+    <p>For things such as headlines, bold, tables, lists, Redmine supports Textile syntax.  See <a class="external" href="https://en.wikipedia.org/wiki/Textile_%28markup_language%29">https://en.wikipedia.org/wiki/Textile_(markup_language)</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
 
         <h3><a name="6" class="wiki-page"></a>Font style</h3>
 
@@ -319,7 +319,7 @@ It can be expanded by clicking a link.
 
     <h2><a name="13" class="wiki-page"></a>Code highlighting</h2>
 
-    <p>Default code highlighting relies on <a href="http://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
+    <p>Default code highlighting relies on <a href="https://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
 
     <p>You can highlight code at any place that supports wiki formatting using this syntax (note that the language name or alias is case-insensitive):</p>
 
diff --git a/app/views/help/wiki_syntax/textile/cs/wiki_syntax_detailed_textile.html.erb b/app/views/help/wiki_syntax/textile/cs/wiki_syntax_detailed_textile.html.erb
index d5de3c6e6..a00d38226 100644
--- a/app/views/help/wiki_syntax/textile/cs/wiki_syntax_detailed_textile.html.erb
+++ b/app/views/help/wiki_syntax/textile/cs/wiki_syntax_detailed_textile.html.erb
@@ -181,24 +181,24 @@
         <p>URL (začínající: www, http, https, ftp, ftps, sftp a sftps) a e-mailové adresy jsou automaticky převedeny na klikací odkazy:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>zobrazí: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>zobrazí: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>Jestliže chcete zobrazit určitý text místo URL, můžete použít standardní syntaxi textile:</p>
 
 <pre>
-"Webová stránka Redmine":http://www.redmine.org
+"Webová stránka Redmine":https://www.redmine.org
 </pre>
 
-        <p>zobrazí: <a href="http://www.redmine.org" class="external">Webová stránka Redmine</a></p>
+        <p>zobrazí: <a href="https://www.redmine.org" class="external">Webová stránka Redmine</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>Formátování textu</h2>
 
 
-    <p>Pro nadpisy, tučný text, tabulky a seznamy, Redmine podporuje syntaxi Textile.  Podívejte se na <a class="external" href="http://en.wikipedia.org/wiki/Textile_%28markup_language%29">http://en.wikipedia.org/wiki/Textile_(markup_language)</a> pro informace o využití těchto vlastností. Několik příkladů je uvedeno níže, ale Textile toho dokáže mnohem víc.</p>
+    <p>Pro nadpisy, tučný text, tabulky a seznamy, Redmine podporuje syntaxi Textile.  Podívejte se na <a class="external" href="https://en.wikipedia.org/wiki/Textile_%28markup_language%29">https://en.wikipedia.org/wiki/Textile_(markup_language)</a> pro informace o využití těchto vlastností. Několik příkladů je uvedeno níže, ale Textile toho dokáže mnohem víc.</p>
 
         <h3><a name="6" class="wiki-page"></a>Styly písma</h3>
 
@@ -327,7 +327,7 @@ Pro rozbalení klikněte na odkaz.
 
     <h2><a name="13" class="wiki-page"></a>Zvýrazňování kódu</h2>
 
-    <p>Výchozí zvýrazňování kódu závisí na <a href="http://rouge.jneen.net/" class="external">Rouge</a>, zvýrazňovači kódu napsaném v Ruby. Rouge podporuje mnoho běžných jazyků jako jsou <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) - jména z závorkách jsou aliasy. Podívejte se, prosím, na <a href="<%= help_code_highlighting_path %>" target="_blank">seznam jazyků podporovaných zvýrazňovačem kódu Redmine</a>.</p>
+    <p>Výchozí zvýrazňování kódu závisí na <a href="https://rouge.jneen.net/" class="external">Rouge</a>, zvýrazňovači kódu napsaném v Ruby. Rouge podporuje mnoho běžných jazyků jako jsou <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) - jména z závorkách jsou aliasy. Podívejte se, prosím, na <a href="<%= help_code_highlighting_path %>" target="_blank">seznam jazyků podporovaných zvýrazňovačem kódu Redmine</a>.</p>
 
     <p>Kód můžete na stránce zvýraznit pomocí následující syntaxe (záleží na velikosti písma jazyku nebo aliasu):</p>
 
diff --git a/app/views/help/wiki_syntax/textile/de/wiki_syntax_detailed_textile.html.erb b/app/views/help/wiki_syntax/textile/de/wiki_syntax_detailed_textile.html.erb
index 468dbd7a3..b8fd2dc5d 100644
--- a/app/views/help/wiki_syntax/textile/de/wiki_syntax_detailed_textile.html.erb
+++ b/app/views/help/wiki_syntax/textile/de/wiki_syntax_detailed_textile.html.erb
@@ -172,18 +172,18 @@
         <p>URLs (beginnend mit: www, http, https, ftp, ftps, sftp und sftps) und E-Mail-Adressen werden automatisch in anklickbare Links umgewandelt:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>zeigt: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>zeigt: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>Wenn Sie anstelle der URL einen bestimmten Text anzeigen möchten, können Sie die Standard-Textil-Syntax verwenden:</p>
 
 <pre>
-"Redmine Webseite":http://www.redmine.org
+"Redmine Webseite":https://www.redmine.org
 </pre>
 
-        <p>zeigt: <a href="http://www.redmine.org" class="external">Redmine Webseite</a></p>
+        <p>zeigt: <a href="https://www.redmine.org" class="external">Redmine Webseite</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>Textformatierung</h2>
@@ -320,7 +320,7 @@ Es kann durch Klicken auf einen Link erweitert werden.
 
     <h2><a name="13" class="wiki-page"></a>Code-Hervorhebung</h2>
 
-    <p>Die standardmäßige Code-Hervorhebung basiert auf <a href="http://rouge.jneen.net/" class="external">Rouge</a>, einem reinen Ruby-Code-Highlighter. Rouge unterstützt viele häufig verwendete Sprachen wie <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> und <strong>yaml</strong> (yml) - die Namen in Klammern sind Aliase. Bitte beachten Sie die <a href="<%= help_code_highlighting_path %>" target="_blank">Liste der Sprachen, die vom Redmine-Code-Highlighter unterstützt werden</a>.</p>
+    <p>Die standardmäßige Code-Hervorhebung basiert auf <a href="https://rouge.jneen.net/" class="external">Rouge</a>, einem reinen Ruby-Code-Highlighter. Rouge unterstützt viele häufig verwendete Sprachen wie <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> und <strong>yaml</strong> (yml) - die Namen in Klammern sind Aliase. Bitte beachten Sie die <a href="<%= help_code_highlighting_path %>" target="_blank">Liste der Sprachen, die vom Redmine-Code-Highlighter unterstützt werden</a>.</p>
 
     <p>Sie können Code an jeder Stelle hervorheben, die Wiki-Formatierung mit dieser Syntax unterstützt (beachten Sie, dass beim Sprachnamen oder Alias ​​die Groß-/Kleinschreibung nicht beachtet wird):</p>
 
diff --git a/app/views/help/wiki_syntax/textile/en/wiki_syntax_detailed_textile.html.erb b/app/views/help/wiki_syntax/textile/en/wiki_syntax_detailed_textile.html.erb
index 03ed0141f..368804957 100644
--- a/app/views/help/wiki_syntax/textile/en/wiki_syntax_detailed_textile.html.erb
+++ b/app/views/help/wiki_syntax/textile/en/wiki_syntax_detailed_textile.html.erb
@@ -172,24 +172,24 @@
         <p>URLs (starting with: www, http, https, ftp, ftps, sftp and sftps) and email addresses are automatically turned into clickable links:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>displays: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>displays: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>If you want to display a specific text instead of the URL, you can use the standard textile syntax:</p>
 
 <pre>
-"Redmine web site":http://www.redmine.org
+"Redmine web site":https://www.redmine.org
 </pre>
 
-        <p>displays: <a href="http://www.redmine.org" class="external">Redmine web site</a></p>
+        <p>displays: <a href="https://www.redmine.org" class="external">Redmine web site</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>Text formatting</h2>
 
 
-    <p>For things such as headlines, bold, tables, lists, Redmine supports Textile syntax.  See <a class="external" href="http://en.wikipedia.org/wiki/Textile_%28markup_language%29">http://en.wikipedia.org/wiki/Textile_(markup_language)</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
+    <p>For things such as headlines, bold, tables, lists, Redmine supports Textile syntax.  See <a class="external" href="https://en.wikipedia.org/wiki/Textile_%28markup_language%29">https://en.wikipedia.org/wiki/Textile_(markup_language)</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
 
         <h3><a name="6" class="wiki-page"></a>Font style</h3>
 
@@ -319,7 +319,7 @@ It can be expanded by clicking a link.
 
     <h2><a name="13" class="wiki-page"></a>Code highlighting</h2>
 
-    <p>Default code highlighting relies on <a href="http://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
+    <p>Default code highlighting relies on <a href="https://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
 
     <p>You can highlight code at any place that supports wiki formatting using this syntax (note that the language name or alias is case-insensitive):</p>
 
diff --git a/app/views/help/wiki_syntax/textile/es-pa/wiki_syntax_detailed_textile.html.erb b/app/views/help/wiki_syntax/textile/es-pa/wiki_syntax_detailed_textile.html.erb
index 03ed0141f..368804957 100644
--- a/app/views/help/wiki_syntax/textile/es-pa/wiki_syntax_detailed_textile.html.erb
+++ b/app/views/help/wiki_syntax/textile/es-pa/wiki_syntax_detailed_textile.html.erb
@@ -172,24 +172,24 @@
         <p>URLs (starting with: www, http, https, ftp, ftps, sftp and sftps) and email addresses are automatically turned into clickable links:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>displays: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>displays: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>If you want to display a specific text instead of the URL, you can use the standard textile syntax:</p>
 
 <pre>
-"Redmine web site":http://www.redmine.org
+"Redmine web site":https://www.redmine.org
 </pre>
 
-        <p>displays: <a href="http://www.redmine.org" class="external">Redmine web site</a></p>
+        <p>displays: <a href="https://www.redmine.org" class="external">Redmine web site</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>Text formatting</h2>
 
 
-    <p>For things such as headlines, bold, tables, lists, Redmine supports Textile syntax.  See <a class="external" href="http://en.wikipedia.org/wiki/Textile_%28markup_language%29">http://en.wikipedia.org/wiki/Textile_(markup_language)</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
+    <p>For things such as headlines, bold, tables, lists, Redmine supports Textile syntax.  See <a class="external" href="https://en.wikipedia.org/wiki/Textile_%28markup_language%29">https://en.wikipedia.org/wiki/Textile_(markup_language)</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
 
         <h3><a name="6" class="wiki-page"></a>Font style</h3>
 
@@ -319,7 +319,7 @@ It can be expanded by clicking a link.
 
     <h2><a name="13" class="wiki-page"></a>Code highlighting</h2>
 
-    <p>Default code highlighting relies on <a href="http://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
+    <p>Default code highlighting relies on <a href="https://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
 
     <p>You can highlight code at any place that supports wiki formatting using this syntax (note that the language name or alias is case-insensitive):</p>
 
diff --git a/app/views/help/wiki_syntax/textile/es/wiki_syntax_detailed_textile.html.erb b/app/views/help/wiki_syntax/textile/es/wiki_syntax_detailed_textile.html.erb
index 03ed0141f..368804957 100644
--- a/app/views/help/wiki_syntax/textile/es/wiki_syntax_detailed_textile.html.erb
+++ b/app/views/help/wiki_syntax/textile/es/wiki_syntax_detailed_textile.html.erb
@@ -172,24 +172,24 @@
         <p>URLs (starting with: www, http, https, ftp, ftps, sftp and sftps) and email addresses are automatically turned into clickable links:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>displays: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>displays: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>If you want to display a specific text instead of the URL, you can use the standard textile syntax:</p>
 
 <pre>
-"Redmine web site":http://www.redmine.org
+"Redmine web site":https://www.redmine.org
 </pre>
 
-        <p>displays: <a href="http://www.redmine.org" class="external">Redmine web site</a></p>
+        <p>displays: <a href="https://www.redmine.org" class="external">Redmine web site</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>Text formatting</h2>
 
 
-    <p>For things such as headlines, bold, tables, lists, Redmine supports Textile syntax.  See <a class="external" href="http://en.wikipedia.org/wiki/Textile_%28markup_language%29">http://en.wikipedia.org/wiki/Textile_(markup_language)</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
+    <p>For things such as headlines, bold, tables, lists, Redmine supports Textile syntax.  See <a class="external" href="https://en.wikipedia.org/wiki/Textile_%28markup_language%29">https://en.wikipedia.org/wiki/Textile_(markup_language)</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
 
         <h3><a name="6" class="wiki-page"></a>Font style</h3>
 
@@ -319,7 +319,7 @@ It can be expanded by clicking a link.
 
     <h2><a name="13" class="wiki-page"></a>Code highlighting</h2>
 
-    <p>Default code highlighting relies on <a href="http://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
+    <p>Default code highlighting relies on <a href="https://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
 
     <p>You can highlight code at any place that supports wiki formatting using this syntax (note that the language name or alias is case-insensitive):</p>
 
diff --git a/app/views/help/wiki_syntax/textile/fr/wiki_syntax_detailed_textile.html.erb b/app/views/help/wiki_syntax/textile/fr/wiki_syntax_detailed_textile.html.erb
index f8340d346..424edc4e0 100644
--- a/app/views/help/wiki_syntax/textile/fr/wiki_syntax_detailed_textile.html.erb
+++ b/app/views/help/wiki_syntax/textile/fr/wiki_syntax_detailed_textile.html.erb
@@ -172,18 +172,18 @@
         <p>URLs (starting with: www, http, https, ftp, ftps, sftp and sftps) and email addresses are automatically turned into clickable links:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>affiche: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>affiche: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>Si vous voulez afficher un texte spécifique à la place de l'URL, vous pouvez utilisez la syntaxe standard textile:</p>
 
 <pre>
-"Site Web Redmine":http://www.redmine.org
+"Site Web Redmine":https://www.redmine.org
 </pre>
 
-        <p>affiche: <a href="http://www.redmine.org" class="external">Site Web Redmine</a></p>
+        <p>affiche: <a href="https://www.redmine.org" class="external">Site Web Redmine</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>Formatage du texte</h2>
@@ -312,7 +312,7 @@ Il peut être déroulé en cliquant sur le lien.
 
     <h2><a name="13" class="wiki-page"></a>Coloration syntaxique</h2>
 
-    <p>Default code highlighting relies on <a href="http://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
+    <p>Default code highlighting relies on <a href="https://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
 
     <p>You can highlight code at any place that supports wiki formatting using this syntax (note that the language name or alias is case-insensitive):</p>
 
diff --git a/app/views/help/wiki_syntax/textile/gl/wiki_syntax_detailed_textile.html.erb b/app/views/help/wiki_syntax/textile/gl/wiki_syntax_detailed_textile.html.erb
index 7b755a53f..64f587b79 100644
--- a/app/views/help/wiki_syntax/textile/gl/wiki_syntax_detailed_textile.html.erb
+++ b/app/views/help/wiki_syntax/textile/gl/wiki_syntax_detailed_textile.html.erb
@@ -172,24 +172,24 @@
         <p>URLs (starting with: www, http, https, ftp, ftps, sftp and sftps) and email addresses are automatically turned into clickable links:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>displays: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>displays: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>If you want to display a specific text instead of the URL, you can use the standard textile syntax:</p>
 
 <pre>
-"Redmine web site":http://www.redmine.org
+"Redmine web site":https://www.redmine.org
 </pre>
 
-        <p>displays: <a href="http://www.redmine.org" class="external">Redmine web site</a></p>
+        <p>displays: <a href="https://www.redmine.org" class="external">Redmine web site</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>Text formatting</h2>
 
 
-    <p>For things such as headlines, bold, tables, lists, Redmine supports Textile syntax.  See <a class="external" href="http://en.wikipedia.org/wiki/Textile_%28markup_language%29">http://en.wikipedia.org/wiki/Textile_(markup_language)</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
+    <p>For things such as headlines, bold, tables, lists, Redmine supports Textile syntax.  See <a class="external" href="https://en.wikipedia.org/wiki/Textile_%28markup_language%29">https://en.wikipedia.org/wiki/Textile_(markup_language)</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
 
         <h3><a name="6" class="wiki-page"></a>Font style</h3>
 
@@ -320,7 +320,7 @@ It can be expanded by clicking a link.
 
     <h2><a name="13" class="wiki-page"></a>Code highlighting</h2>
 
-    <p>Default code highlighting relies on <a href="http://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
+    <p>Default code highlighting relies on <a href="https://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
 
     <p>You can highlight code at any place that supports wiki formatting using this syntax (note that the language name or alias is case-insensitive):</p>
 
diff --git a/app/views/help/wiki_syntax/textile/ja/wiki_syntax_detailed_textile.html.erb b/app/views/help/wiki_syntax/textile/ja/wiki_syntax_detailed_textile.html.erb
index f194e499d..3d04f634f 100644
--- a/app/views/help/wiki_syntax/textile/ja/wiki_syntax_detailed_textile.html.erb
+++ b/app/views/help/wiki_syntax/textile/ja/wiki_syntax_detailed_textile.html.erb
@@ -172,24 +172,24 @@
         <p>URL(starting with: www, http, https, ftp, ftps, sftp and sftps)とメールアドレスは自動的にリンクになります:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>上記記述の表示例です: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>上記記述の表示例です: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>URLのかわりに別のテキストを表示させたい場合は、標準的なtextile記法が利用できます:</p>
 
 <pre>
-"Redmine web site":http://www.redmine.org
+"Redmine web site":https://www.redmine.org
 </pre>
 
-        <p>上記記述の表示例です: <a href="http://www.redmine.org" class="external">Redmine web site</a></p>
+        <p>上記記述の表示例です: <a href="https://www.redmine.org" class="external">Redmine web site</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>テキストの書式</h2>
 
 
-    <p>見出し、太字、テーブル、リスト等は、RedmineはTextile記法での記述に対応しています。Textile記法の詳細は <a class="external" href="http://en.wikipedia.org/wiki/Textile_%28markup_language%29">http://en.wikipedia.org/wiki/Textile_(markup_language)</a> を参照してください。Textileの一例を以下に示しますが、実際にはここで取り上げた以外の記法にも対応しています。</p>
+    <p>見出し、太字、テーブル、リスト等は、RedmineはTextile記法での記述に対応しています。Textile記法の詳細は <a class="external" href="https://en.wikipedia.org/wiki/Textile_%28markup_language%29">https://en.wikipedia.org/wiki/Textile_(markup_language)</a> を参照してください。Textileの一例を以下に示しますが、実際にはここで取り上げた以外の記法にも対応しています。</p>
 
         <h3><a name="6" class="wiki-page"></a>文字の書式</h3>
 
@@ -319,7 +319,7 @@ To go live, all you need to add is a database and a web server.
 
     <h2><a name="13" class="wiki-page"></a>コードハイライト</h2>
 
-    <p>RedmineはRubyで記述されたコードハイライト用ライブラリ <a href="http://rouge.jneen.net/" class="external">Rouge</a> を使用しています。Rougeは <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong>, <strong>yaml</strong> (yml) など一般的に使われている多数の言語に対応しています（括弧内の名前はコードハイライトの指定に利用できる別名です）。全対応言語の一覧は <a href="<%= help_code_highlighting_path %>" target="_blank">List of languages supported by Redmine code highlighter</a> を参照してください。</p>
+    <p>RedmineはRubyで記述されたコードハイライト用ライブラリ <a href="https://rouge.jneen.net/" class="external">Rouge</a> を使用しています。Rougeは <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong>, <strong>yaml</strong> (yml) など一般的に使われている多数の言語に対応しています（括弧内の名前はコードハイライトの指定に利用できる別名です）。全対応言語の一覧は <a href="<%= help_code_highlighting_path %>" target="_blank">List of languages supported by Redmine code highlighter</a> を参照してください。</p>
 
     <p>Wiki記法に対応している箇所であればどこでも以下の記述によりコードハイライトが利用できます (言語名・別名では大文字・小文字は区別されません):</p>
 
diff --git a/app/views/help/wiki_syntax/textile/ko/wiki_syntax_detailed_textile.html.erb b/app/views/help/wiki_syntax/textile/ko/wiki_syntax_detailed_textile.html.erb
index 03ed0141f..368804957 100644
--- a/app/views/help/wiki_syntax/textile/ko/wiki_syntax_detailed_textile.html.erb
+++ b/app/views/help/wiki_syntax/textile/ko/wiki_syntax_detailed_textile.html.erb
@@ -172,24 +172,24 @@
         <p>URLs (starting with: www, http, https, ftp, ftps, sftp and sftps) and email addresses are automatically turned into clickable links:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>displays: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>displays: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>If you want to display a specific text instead of the URL, you can use the standard textile syntax:</p>
 
 <pre>
-"Redmine web site":http://www.redmine.org
+"Redmine web site":https://www.redmine.org
 </pre>
 
-        <p>displays: <a href="http://www.redmine.org" class="external">Redmine web site</a></p>
+        <p>displays: <a href="https://www.redmine.org" class="external">Redmine web site</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>Text formatting</h2>
 
 
-    <p>For things such as headlines, bold, tables, lists, Redmine supports Textile syntax.  See <a class="external" href="http://en.wikipedia.org/wiki/Textile_%28markup_language%29">http://en.wikipedia.org/wiki/Textile_(markup_language)</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
+    <p>For things such as headlines, bold, tables, lists, Redmine supports Textile syntax.  See <a class="external" href="https://en.wikipedia.org/wiki/Textile_%28markup_language%29">https://en.wikipedia.org/wiki/Textile_(markup_language)</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
 
         <h3><a name="6" class="wiki-page"></a>Font style</h3>
 
@@ -319,7 +319,7 @@ It can be expanded by clicking a link.
 
     <h2><a name="13" class="wiki-page"></a>Code highlighting</h2>
 
-    <p>Default code highlighting relies on <a href="http://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
+    <p>Default code highlighting relies on <a href="https://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
 
     <p>You can highlight code at any place that supports wiki formatting using this syntax (note that the language name or alias is case-insensitive):</p>
 
diff --git a/app/views/help/wiki_syntax/textile/lt/wiki_syntax_detailed_textile.html.erb b/app/views/help/wiki_syntax/textile/lt/wiki_syntax_detailed_textile.html.erb
index 527079b18..95e4f3c7a 100644
--- a/app/views/help/wiki_syntax/textile/lt/wiki_syntax_detailed_textile.html.erb
+++ b/app/views/help/wiki_syntax/textile/lt/wiki_syntax_detailed_textile.html.erb
@@ -172,24 +172,24 @@
         <p>URLs (starting with: www, http, https, ftp, ftps, sftp and sftps) and email addresses are automatically turned into clickable links:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>displays: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>displays: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>If you want to display a specific text instead of the URL, you can use the standard textile syntax:</p>
 
 <pre>
-"Redmine web site":http://www.redmine.org
+"Redmine web site":https://www.redmine.org
 </pre>
 
-        <p>displays: <a href="http://www.redmine.org" class="external">Redmine web site</a></p>
+        <p>displays: <a href="https://www.redmine.org" class="external">Redmine web site</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>Text formatting</h2>
 
 
-    <p>For things such as headlines, bold, tables, lists, Redmine supports Textile syntax.  See <a class="external" href="http://en.wikipedia.org/wiki/Textile_%28markup_language%29">http://en.wikipedia.org/wiki/Textile_(markup_language)</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
+    <p>For things such as headlines, bold, tables, lists, Redmine supports Textile syntax.  See <a class="external" href="https://en.wikipedia.org/wiki/Textile_%28markup_language%29">https://en.wikipedia.org/wiki/Textile_(markup_language)</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
 
         <h3><a name="6" class="wiki-page"></a>Font style</h3>
 
@@ -320,7 +320,7 @@ It can be expanded by clicking a link.
 
     <h2><a name="13" class="wiki-page"></a>Code highlighting</h2>
 
-    <p>Default code highlighting relies on <a href="http://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
+    <p>Default code highlighting relies on <a href="https://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
 
     <p>You can highlight code at any place that supports wiki formatting using this syntax (note that the language name or alias is case-insensitive):</p>
 
diff --git a/app/views/help/wiki_syntax/textile/nl/wiki_syntax_detailed_textile.html.erb b/app/views/help/wiki_syntax/textile/nl/wiki_syntax_detailed_textile.html.erb
index 03ed0141f..368804957 100644
--- a/app/views/help/wiki_syntax/textile/nl/wiki_syntax_detailed_textile.html.erb
+++ b/app/views/help/wiki_syntax/textile/nl/wiki_syntax_detailed_textile.html.erb
@@ -172,24 +172,24 @@
         <p>URLs (starting with: www, http, https, ftp, ftps, sftp and sftps) and email addresses are automatically turned into clickable links:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>displays: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>displays: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>If you want to display a specific text instead of the URL, you can use the standard textile syntax:</p>
 
 <pre>
-"Redmine web site":http://www.redmine.org
+"Redmine web site":https://www.redmine.org
 </pre>
 
-        <p>displays: <a href="http://www.redmine.org" class="external">Redmine web site</a></p>
+        <p>displays: <a href="https://www.redmine.org" class="external">Redmine web site</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>Text formatting</h2>
 
 
-    <p>For things such as headlines, bold, tables, lists, Redmine supports Textile syntax.  See <a class="external" href="http://en.wikipedia.org/wiki/Textile_%28markup_language%29">http://en.wikipedia.org/wiki/Textile_(markup_language)</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
+    <p>For things such as headlines, bold, tables, lists, Redmine supports Textile syntax.  See <a class="external" href="https://en.wikipedia.org/wiki/Textile_%28markup_language%29">https://en.wikipedia.org/wiki/Textile_(markup_language)</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
 
         <h3><a name="6" class="wiki-page"></a>Font style</h3>
 
@@ -319,7 +319,7 @@ It can be expanded by clicking a link.
 
     <h2><a name="13" class="wiki-page"></a>Code highlighting</h2>
 
-    <p>Default code highlighting relies on <a href="http://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
+    <p>Default code highlighting relies on <a href="https://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
 
     <p>You can highlight code at any place that supports wiki formatting using this syntax (note that the language name or alias is case-insensitive):</p>
 
diff --git a/app/views/help/wiki_syntax/textile/pt-br/wiki_syntax_detailed_textile.html.erb b/app/views/help/wiki_syntax/textile/pt-br/wiki_syntax_detailed_textile.html.erb
index 03ed0141f..368804957 100644
--- a/app/views/help/wiki_syntax/textile/pt-br/wiki_syntax_detailed_textile.html.erb
+++ b/app/views/help/wiki_syntax/textile/pt-br/wiki_syntax_detailed_textile.html.erb
@@ -172,24 +172,24 @@
         <p>URLs (starting with: www, http, https, ftp, ftps, sftp and sftps) and email addresses are automatically turned into clickable links:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>displays: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>displays: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>If you want to display a specific text instead of the URL, you can use the standard textile syntax:</p>
 
 <pre>
-"Redmine web site":http://www.redmine.org
+"Redmine web site":https://www.redmine.org
 </pre>
 
-        <p>displays: <a href="http://www.redmine.org" class="external">Redmine web site</a></p>
+        <p>displays: <a href="https://www.redmine.org" class="external">Redmine web site</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>Text formatting</h2>
 
 
-    <p>For things such as headlines, bold, tables, lists, Redmine supports Textile syntax.  See <a class="external" href="http://en.wikipedia.org/wiki/Textile_%28markup_language%29">http://en.wikipedia.org/wiki/Textile_(markup_language)</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
+    <p>For things such as headlines, bold, tables, lists, Redmine supports Textile syntax.  See <a class="external" href="https://en.wikipedia.org/wiki/Textile_%28markup_language%29">https://en.wikipedia.org/wiki/Textile_(markup_language)</a> for information on using any of these features.  A few samples are included below, but the engine is capable of much more of that.</p>
 
         <h3><a name="6" class="wiki-page"></a>Font style</h3>
 
@@ -319,7 +319,7 @@ It can be expanded by clicking a link.
 
     <h2><a name="13" class="wiki-page"></a>Code highlighting</h2>
 
-    <p>Default code highlighting relies on <a href="http://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
+    <p>Default code highlighting relies on <a href="https://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
 
     <p>You can highlight code at any place that supports wiki formatting using this syntax (note that the language name or alias is case-insensitive):</p>
 
diff --git a/app/views/help/wiki_syntax/textile/ru/wiki_syntax_detailed_textile.html.erb b/app/views/help/wiki_syntax/textile/ru/wiki_syntax_detailed_textile.html.erb
index 9b04f8cc3..bab76ec59 100644
--- a/app/views/help/wiki_syntax/textile/ru/wiki_syntax_detailed_textile.html.erb
+++ b/app/views/help/wiki_syntax/textile/ru/wiki_syntax_detailed_textile.html.erb
@@ -196,27 +196,27 @@
 <p>URLs (starting with: www, http, https, ftp, ftps, sftp and sftps) and email addresses are automatically turned into clickable links:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-<p>выводится: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a
+<p>выводится: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a
         href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
 <p>Если же вы хотите, чтобы отобразился текст вместо адреса URL, вы можете испольовать стандартный синтаксис
     форматирования текста:</p>
 
 <pre>
-"Сайт Redmine":http://www.redmine.org
+"Сайт Redmine":https://www.redmine.org
 </pre>
 
-<p>выводится: <a href="http://www.redmine.org" class="external">Сайт Redmine</a></p>
+<p>выводится: <a href="https://www.redmine.org" class="external">Сайт Redmine</a></p>
 
 
 <h2><a name="5" class="wiki-page"></a>Форматирование текста</h2>
 
     <p>Для таких вещей, как заголовки, выделение, таблицы и списки, Redmine поддерживает синтакс Textile. Обратитесь за
     руководством к странице <a class="external"
-                               href="http://en.wikipedia.org/wiki/Textile_%28markup_language%29">http://en.wikipedia.org/wiki/Textile_(markup_language)</a>
+                               href="https://en.wikipedia.org/wiki/Textile_%28markup_language%29">https://en.wikipedia.org/wiki/Textile_(markup_language)</a>
     . Несколько примеров приведены ниже, Но сам текстовый процессор способен на гораздо большее.</p>
 
 <h3><a name="6" class="wiki-page"></a>Стиль шрифта</h3>
@@ -344,7 +344,7 @@ bq. Rails - это полноценный, многоуровневый фрей
 
 <h2><a name="13" class="wiki-page"></a>Подсветка кода</h2>
 
-<p>Default code highlighting relies on <a href="http://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
+<p>Default code highlighting relies on <a href="https://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
 
 <p>Вы можете подсветить код в любом месте, где поддерживается wiki-форматирование (название языка не зависит от регистра):</p>
 
diff --git a/app/views/help/wiki_syntax/textile/ta-in/wiki_syntax_detailed_textile.html.erb b/app/views/help/wiki_syntax/textile/ta-in/wiki_syntax_detailed_textile.html.erb
index 0adcdfb1a..f2a52a577 100644
--- a/app/views/help/wiki_syntax/textile/ta-in/wiki_syntax_detailed_textile.html.erb
+++ b/app/views/help/wiki_syntax/textile/ta-in/wiki_syntax_detailed_textile.html.erb
@@ -172,24 +172,24 @@
         <p>URLs (starting with: www, http, https, ftp, ftps, sftp and sftps) மின்னஞ்சல் முகவரிகள் தானாக கிளிக் செய்யக்கூடிய இணைப்புகளாக மாற்றப்படும்:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>காட்சிகள்: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>காட்சிகள்: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>URL க்கு பதிலாக ஒரு குறிப்பிட்ட உரையைக் காட்ட விரும்பினால், நீங்கள் நிலையான மார்க் டவுன் தொடரியல் பயன்படுத்தலாம்:</p>
 
 <pre>
-"Redmine web site":http://www.redmine.org
+"Redmine web site":https://www.redmine.org
 </pre>
 
-        <p>காட்சிகள்: <a href="http://www.redmine.org" class="external">ரெட்மைன் வலைத்தளம்</a></p>
+        <p>காட்சிகள்: <a href="https://www.redmine.org" class="external">ரெட்மைன் வலைத்தளம்</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>உரை வடிவமைத்தல்</h2>
 
 
-    <p>தலைப்புச் செய்திகள், தடித்த, அட்டவணைகள், பட்டியல்கள் போன்ற விஷயங்களுக்கு, ரெட்மைன் மார்க் டவுன் தொடரியல் ஆதரிக்கிறது.  See <a class="external" href="http://en.wikipedia.org/wiki/Textile_%28markup_language%29">http://en.wikipedia.org/wiki/Textile_(markup_language)</a> இந்த அம்சங்களில் ஏதேனும் ஒன்றைப் பயன்படுத்துவது பற்றிய தகவலுக்கு.  ஒரு சில மாதிரிகள் கீழே சேர்க்கப்பட்டுள்ளன, ஆனால் இயந்திரம் அதைவிட அதிக திறன் கொண்டது.</p>
+    <p>தலைப்புச் செய்திகள், தடித்த, அட்டவணைகள், பட்டியல்கள் போன்ற விஷயங்களுக்கு, ரெட்மைன் மார்க் டவுன் தொடரியல் ஆதரிக்கிறது.  See <a class="external" href="https://en.wikipedia.org/wiki/Textile_%28markup_language%29">https://en.wikipedia.org/wiki/Textile_(markup_language)</a> இந்த அம்சங்களில் ஏதேனும் ஒன்றைப் பயன்படுத்துவது பற்றிய தகவலுக்கு.  ஒரு சில மாதிரிகள் கீழே சேர்க்கப்பட்டுள்ளன, ஆனால் இயந்திரம் அதைவிட அதிக திறன் கொண்டது.</p>
 
         <h3><a name="6" class="wiki-page"></a>எழுத்துரு வகை</h3>
 
@@ -319,7 +319,7 @@ bq. ரெயில்ஸ் என்பது மாடல்-வியூ-க
 
     <h2><a name="13" class="wiki-page"></a>குறியீடு சிறப்பம்சமாக</h2>
 
-    <p>இயல்புநிலை குறியீடு சிறப்பம்சத்தை நம்பியுள்ளது <a href="http://rouge.jneen.net/" class="external">Rouge</a>, a syntax highlighting library written in pure Ruby. It supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages, where the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
+    <p>இயல்புநிலை குறியீடு சிறப்பம்சத்தை நம்பியுள்ளது <a href="https://rouge.jneen.net/" class="external">Rouge</a>, a syntax highlighting library written in pure Ruby. It supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages, where the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
 
     <p>இந்த தொடரியல் பயன்படுத்தி விக்கி வடிவமைப்பை ஆதரிக்கும் எந்த இடத்திலும் குறியீட்டை முன்னிலைப்படுத்தலாம் (மொழி பெயர் அல்லது மாற்று வழக்கு-உணர்வற்றது என்பதை நினைவில் கொள்க):</p>
 
diff --git a/app/views/help/wiki_syntax/textile/uk/wiki_syntax_detailed_textile.html.erb b/app/views/help/wiki_syntax/textile/uk/wiki_syntax_detailed_textile.html.erb
index 64a91c295..f90970faa 100644
--- a/app/views/help/wiki_syntax/textile/uk/wiki_syntax_detailed_textile.html.erb
+++ b/app/views/help/wiki_syntax/textile/uk/wiki_syntax_detailed_textile.html.erb
@@ -172,18 +172,18 @@
         <p>URLs (starting with: www, http, https, ftp, ftps, sftp and sftps) and email addresses are automatically turned into clickable links:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>відображається як: <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>відображається як: <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>Якщо ви хочете, відобразити текст замість URL, ви можете використовувати дужки:</p>
 
 <pre>
-"Redmine web site":http://www.redmine.org
+"Redmine web site":https://www.redmine.org
 </pre>
 
-        <p>відображається як: <a href="http://www.redmine.org" class="external">Redmine web site</a></p>
+        <p>відображається як: <a href="https://www.redmine.org" class="external">Redmine web site</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>Форматування тексту</h2>
@@ -319,7 +319,7 @@ bq. Redmine — серверний веб-додаток з відкритим �
 
     <h2><a name="13" class="wiki-page"></a>Підсвітка синтаксису коду</h2>
 
-    <p>Default code highlighting relies on <a href="http://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
+    <p>Default code highlighting relies on <a href="https://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
 
     <p>Ви можете виділити підсвіткою код в будь-якому місці, яке підтримує вікі-форматування, використовуючи наступний синтаксис (зверніть увагу, що назва мови або псевдонім не чутливі до регістру):</p>
 
diff --git a/app/views/help/wiki_syntax/textile/zh-tw/wiki_syntax_detailed_textile.html.erb b/app/views/help/wiki_syntax/textile/zh-tw/wiki_syntax_detailed_textile.html.erb
index 07c263801..d1247e1a1 100644
--- a/app/views/help/wiki_syntax/textile/zh-tw/wiki_syntax_detailed_textile.html.erb
+++ b/app/views/help/wiki_syntax/textile/zh-tw/wiki_syntax_detailed_textile.html.erb
@@ -172,24 +172,24 @@
         <p>URLs (starting with: www, http, https, ftp, ftps, sftp and sftps) and email addresses are automatically turned into clickable links:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>會顯示成： <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>會顯示成： <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>若您想要顯示指定的文字而非該 URL ，您可以使用下列標準的 textile 語法:</p>
 
 <pre>
-"Redmine web site":http://www.redmine.org
+"Redmine web site":https://www.redmine.org
 </pre>
 
-        <p>會顯示成： <a href="http://www.redmine.org" class="external">Redmine web site</a></p>
+        <p>會顯示成： <a href="https://www.redmine.org" class="external">Redmine web site</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>文字格式設定</h2>
 
 
-    <p>對於諸如標題、粗體、表格、清單等項目， Redmine 支援使用 Textile 語法。可參考 <a class="external" href="http://en.wikipedia.org/wiki/Textile_%28markup_language%29">http://en.wikipedia.org/wiki/Textile_(markup_language)</a> 中關於使用這些格式化功能的說明資訊。 下面包含了一些使用範例，但格式化引擎的處理能力遠多於這些簡單的使用範例。</p>
+    <p>對於諸如標題、粗體、表格、清單等項目， Redmine 支援使用 Textile 語法。可參考 <a class="external" href="https://en.wikipedia.org/wiki/Textile_%28markup_language%29">https://en.wikipedia.org/wiki/Textile_(markup_language)</a> 中關於使用這些格式化功能的說明資訊。 下面包含了一些使用範例，但格式化引擎的處理能力遠多於這些簡單的使用範例。</p>
 
         <h3><a name="6" class="wiki-page"></a>字型樣式</h3>
 
@@ -319,7 +319,7 @@ It can be expanded by clicking a link.
 
     <h2><a name="13" class="wiki-page"></a>程式碼醒目提示</h2>
 
-    <p>Default code highlighting relies on <a href="http://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
+    <p>Default code highlighting relies on <a href="https://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
 
     <p>您可載任何支援 Wiki 格式設定的地方，使用這個語法來醒目提示程式碼 (注意語言與其別名的名稱不須區分大小寫)：</p>
 
diff --git a/app/views/help/wiki_syntax/textile/zh/wiki_syntax_detailed_textile.html.erb b/app/views/help/wiki_syntax/textile/zh/wiki_syntax_detailed_textile.html.erb
index 30be9a0f5..7d1715fe0 100644
--- a/app/views/help/wiki_syntax/textile/zh/wiki_syntax_detailed_textile.html.erb
+++ b/app/views/help/wiki_syntax/textile/zh/wiki_syntax_detailed_textile.html.erb
@@ -172,24 +172,24 @@
         <p>URLs (starting with: www, http, https, ftp, ftps, sftp and sftps) and email addresses are automatically turned into clickable links:</p>
 
 <pre>
-http://www.redmine.org, someone@foo.bar
+https://www.redmine.org, someone@foo.bar
 </pre>
 
-        <p>显示为： <a class="external" href="http://www.redmine.org">http://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
+        <p>显示为： <a class="external" href="https://www.redmine.org">https://www.redmine.org</a>, <a href="mailto:someone@foo.bar" class="email">someone@foo.bar</a></p>
 
         <p>如果您想要显示指定的文本而不是链接,您可以通过下列标准的 textile 语法:</p>
 
 <pre>
-"Redmine 官网":http://www.redmine.org
+"Redmine 官网":https://www.redmine.org
 </pre>
 
-        <p>显示为： <a href="http://www.redmine.org" class="external">Redmine 官网</a></p>
+        <p>显示为： <a href="https://www.redmine.org" class="external">Redmine 官网</a></p>
 
 
     <h2><a name="5" class="wiki-page"></a>字体格式</h2>
 
 
-    <p>对于像是标题、粗体、表格、列表等文字格式， Redmine 支持使用 <a class="external" href="http://en.wikipedia.org/wiki/Textile_%28markup_language%29">http://en.wikipedia.org/wiki/Textile_(markup_language)</a> 查找关于使用这些特性的信息。下面将展示其中的一些常用的语法。</p>
+    <p>对于像是标题、粗体、表格、列表等文字格式， Redmine 支持使用 <a class="external" href="https://en.wikipedia.org/wiki/Textile_%28markup_language%29">https://en.wikipedia.org/wiki/Textile_(markup_language)</a> 查找关于使用这些特性的信息。下面将展示其中的一些常用的语法。</p>
 
         <h3><a name="6" class="wiki-page"></a>字体风格</h3>
 
@@ -319,7 +319,7 @@ To go live, all you need to add is a database and a web server.
 
     <h2><a name="13" class="wiki-page"></a>代码高亮</h2>
 
-    <p>Default code highlighting relies on <a href="http://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
+    <p>Default code highlighting relies on <a href="https://rouge.jneen.net/" class="external">Rouge</a>, a pure Ruby code highlighter. Rouge supports many commonly used languages such as <strong>c</strong>, <strong>cpp</strong> (c++), <strong>csharp</strong> (c#, cs), <strong>css</strong>, <strong>diff</strong> (patch, udiff), <strong>go</strong> (golang), <strong>groovy</strong>, <strong>html</strong>, <strong>java</strong>, <strong>javascript</strong> (js), <strong>kotlin</strong>, <strong>objective_c</strong> (objc), <strong>perl</strong> (pl), <strong>php</strong>, <strong>python</strong> (py), <strong>r</strong>, <strong>ruby</strong> (rb), <strong>sass</strong>, <strong>scala</strong>, <strong>shell</strong> (bash, zsh, ksh, sh), <strong>sql</strong>, <strong>swift</strong>, <strong>xml</strong> and <strong>yaml</strong> (yml) languages - the names inside parentheses are aliases. Please refer to the <a href="<%= help_code_highlighting_path %>" target="_blank">list of languages supported by Redmine code highlighter</a>.</p>
 
     <p>You can highlight code at any place that supports wiki formatting using this syntax (note that the language name or alias is case-insensitive):</p>