Change link on the first script page (#5677)

* Change link on the first script page

getting_started/introduction/introduction_to_godot.rst

@@ -95,6 +95,8 @@ completely free and open-source.
              see :ref:`GDNative third-party bindings
              <doc_what_is_gdnative_third_party_bindings>`.
 
+.. doc_learning_programming
+
 What do I need to know to use Godot?
 ------------------------------------
 

getting_started/step_by_step/scripting_first_script.rst

@@ -3,8 +3,8 @@
 
     - Giving a *short* and sweet hands-on intro to GDScript. The page should
       focus on working in the code editor.
-    - We assume the reader has programming foundations, as explained in
-    getting_started/introduction.
+    - We assume the reader has programming foundations. If you don't, consider
+      taking the course we recommend in the :ref:`introduction to Godot page <doc_learning_programming>`.
 
     Techniques: