Add guidelines for submitting issues to template

Signed-off-by: Daniel Kesselberg <mail@danielkesselberg.de>

.github/ISSUE_TEMPLATE/Bug_report.md

@@ -9,17 +9,35 @@ Thanks for reporting issues back to Nextcloud!
 
 Note: This is the **issue tracker of Nextcloud**, please do NOT use this to get answers to your questions or get help for fixing your installation. This is a place to report bugs to developers, after your server has been debugged. You can find help debugging your system on our home user forums: https://help.nextcloud.com or, if you use Nextcloud in a large organization, ask our engineers on https://portal.nextcloud.com. See also  https://nextcloud.com/support for support options.
 
-This is the bug tracker for the Server component. Find other components at https://github.com/nextcloud/
+If you are a customer and are using Nextcloud Enterprise, please submit your issue directly in the Nextcloud Portal https://portal.nextcloud.com so it gets resolved more quickly by our dedicated engineers.
 
-For reporting potential security issues please see https://nextcloud.com/security/
+Nextcloud is an open source project backed by Nextcloud GmbH. Most of our volunteers are home users and thus primarily care about issues that affect home users. Our paid engineers prioritize issues of our customers. If you are neither a home user nor a customer, consider paying somebody to fix your issue, do it yourself or become a customer.
+-->
 
-To make it possible for us to deal with the bug please fill out below information carefully. 
-You can also use the Issue Template application to prefill most of the required information: https://apps.nextcloud.com/apps/issuetemplate
+<!--- 
+Guidelines for submitting issues:
+
+* Please search the existing issues first, it's likely that your issue was already reported or even fixed.
+    - Go to one of the repositories, click "issues" and type any word in the top search/command bar.
+    - You can also filter by appending e. g. "state:open" to the search string.
+    - More info on search syntax within github: https://help.github.com/articles/searching-issues
+    
+* This repository https://github.com/nextcloud/server/issues is *only* for issues within the Nextcloud Server code. This also includes the apps: files, encryption, external storage, sharing, deleted files, versions, LDAP, and WebDAV Auth
+  
+* SECURITY: Report any potential security bug to us via our HackerOne page (https://hackerone.com/nextcloud) following our security policy (https://nextcloud.com/security/) instead of filing an issue in our bug tracker.  
+
+* The issues in other components should be reported in their respective repositories: You will find them in our GitHub Organization (https://github.com/nextcloud/)
+  
+* You can also use the Issue Template app to prefill most of the required information: https://apps.nextcloud.com/apps/issuetemplate
+-->
 
-If you are a customer and are using Nextcloud Enterprise, please submit your issue directly in the Nextcloud Portal https://portal.nextcloud.com so it gets resolved more quickly by our dedicated engineers.
+<!--- Please keep this note for other contributors -->
+
+### How to use GitHub
+
+* Please use the 👍 [reaction](https://blog.github.com/2016-03-10-add-reactions-to-pull-requests-issues-and-comments/) to show that you are affected by the same issue.
+* Please don't comment if you have no relevant information to add. It's just extra noise for everyone subscribed to this issue.
 
-Note that Nextcloud is an open source project backed by Nextcloud GmbH. Most of our volunteers are home users and thus primarily care about issues that affect home users. Our paid engineers prioritize issues of our customers. If you are neither a home user nor a customer, consider paying somebody to fix your issue, do it yourself or become a customer.
--->
 
 ### Steps to reproduce
 1.

.github/ISSUE_TEMPLATE/config.yml

@@ -3,6 +3,3 @@ contact_links:
     - name: ❓ Question
       url: https://help.nextcloud.com/
       about: I have a question …
-    - name: 🔒 Security Vulnerability
-      url: https://hackerone.com/nextcloud
-      about: Found a security vulnerability?