Feature/tutorial finetuning (#9672)

* Trying to lower the barrier to start following the tutorial
* Guiding new Vaadin users to start with the tutorial

documentation/getting-started/chapter-getting-started.asciidoc

@@ -1,6 +1,8 @@
 [[getting-started]]
 == Creating a Vaadin Application
 
+TIP: If you are new to Vaadin, we suggest to start with <<dummy/../../../framework/tutorial#tutorial,"the tutorial">>. It also contains instructions how to set up Eclipse based development environment.
+
 This chapter gives practical instructions for creating a Vaadin application project and deploying it to a server to run it. We also consider topics such as debugging.
 
 The instructions are given separately for the Eclipse IDE, NetBeans, and IntelliJ IDEA.

documentation/getting-started/getting-started-first-project.asciidoc

@@ -7,6 +7,8 @@ layout: page
 [[getting-started.first-project]]
 = Creating and Running a Project in Eclipse
 
+TIP: If you are new to Vaadin, we suggest to start with <<dummy/../../../framework/tutorial#tutorial,"the tutorial">>. It also contains instructions how to set up Eclipse based development environment.
+
 This section gives instructions for creating a new Eclipse project using the
 Vaadin Plugin. The task will include the following steps:
 

documentation/installing/installing-eclipse.adoc

@@ -7,6 +7,8 @@ layout: page
 [[installing.eclipse]]
 = Installing the Eclipse IDE and Plugin
 
+TIP: If you are new to Vaadin, we suggest to start with <<dummy/../../../framework/tutorial#tutorial,"the tutorial">>. It also contains instructions how to set up Eclipse based development environment.
+
 If you are using the Eclipse IDE, using the Vaadin Plugin for Eclipse helps
 greatly. The plugin includes wizards for creating new Vaadin-based projects,
 themes, and client-side widgets and widget sets. Notice that you can also create