Update introduction_to_godot_development.rst

Typos

reference/introduction_to_godot_development.rst

@@ -3,15 +3,15 @@
 Introduction to Godot development
 =================================
 
-This page is maent to introduce the global organization of Godot Engine's
+This page is meant to introduce the global organization of Godot Engine's
 source code, and give useful tips for extending/fixing the engine on the
 C++ side.
 
 Architecture diagram
 --------------------
 
-The follow diagram describes the architecture used by Godot, from the
-core components down to the abstracted drivers drivers, via the scene
+The following diagram describes the architecture used by Godot, from the
+core components down to the abstracted drivers, via the scene
 structure and the servers.
 
 .. image:: /img/architecture_diagram.jpg