Add link to classref howto

Fixes #2417.

README.md

@@ -12,7 +12,9 @@ Though arguably less convenient to edit than a wiki, this git repository is mean
 
 ### Editing existing pages
 
-To edit an existing page, locate its .rst source file and open it in your favorite text editor. You can then commit the changes, push them to your fork and make a pull request. **Note that the pages in `classes/` should not be edited here, they are automatically generated from Godot's [XML class references](https://github.com/godotengine/godot/tree/master/doc/classes).**
+To edit an existing page, locate its .rst source file and open it in your favorite text editor. You can then commit the changes, push them to your fork and make a pull request.
+**Note that the pages in `classes/` should not be edited here, they are automatically generated from Godot's [XML class references](https://github.com/godotengine/godot/tree/master/doc/classes).**
+See [Contribute to the Class Reference](https://docs.godotengine.org/en/latest/community/contributing/updating_the_class_reference.html) for details.
 
 ### Adding new pages
 

community/contributing/updating_the_class_reference.rst

@@ -3,9 +3,11 @@
 Contribute to the Class Reference
 =================================
 
-Godot ships with many nodes and singletons to help you develop your games in GDscript. Each is a class, documented in the :ref:`class reference <toc-class-ref>`. This reference is essential for anyone learning the engine: it is available both online and in the engine.
+Godot ships with many nodes and singletons to help you develop your games. Each is a class, documented in the :ref:`class reference <toc-class-ref>`.
+This reference is essential for anyone learning the engine: it is available both online and in the engine.
 
-But it's incomplete. Some methods, variables and signals lack descriptions. Others changed with recent releases and need updates. The developers can't write the entire reference on their own. Godot needs you, and all of us, to contribute.
+But it's incomplete. Some methods, variables and signals lack descriptions. Others changed with recent releases and need updates.
+The developers can't write the entire reference on their own. Godot needs you, and all of us, to contribute.
 
 **Important:** If you are planning to make larger changes or a more substantial contribution, it is usually a good idea
 to create an issue (or a comment in an existing one) to let others know so they don't start working on the same thing too.