README updates and improvements, link license page

...some copy edits, and sprinkling some links over that page in general.

(cherry picked from commit 0f1ace5b6ae71d1ead4e794f79971ef6566541c3)

README.md

@@ -10,8 +10,8 @@
 
 **[Godot Engine](https://godotengine.org) is a feature-packed, cross-platform
 game engine to create 2D and 3D games from a unified interface.** It provides a
-comprehensive set of common tools, so that users can focus on making games
-without having to reinvent the wheel. Games can be exported in one click to a
+comprehensive set of [common tools](https://godotengine.org/features), so that users can focus on making games
+without having to reinvent the wheel. Games can be exported with one click to a
 number of platforms, including the major desktop platforms (Linux, macOS,
 Windows), mobile platforms (Android, iOS), as well as Web-based platforms
 (HTML5) and
@@ -19,18 +19,19 @@ Windows), mobile platforms (Android, iOS), as well as Web-based platforms
 
 ## Free, open source and community-driven
 
-Godot is completely free and open source under the very permissive MIT license.
+Godot is completely free and open source under the very permissive [MIT license](https://godotengine.org/license).
 No strings attached, no royalties, nothing. The users' games are theirs, down
 to the last line of engine code. Godot's development is fully independent and
 community-driven, empowering users to help shape their engine to match their
 expectations. It is supported by the [Software Freedom Conservancy](https://sfconservancy.org/)
 not-for-profit.
 
-Before being open sourced in February 2014, Godot had been developed by Juan
-Linietsky and Ariel Manzur (both still maintaining the project) for several
+Before being open sourced in [February 2014](https://github.com/godotengine/godot/commit/0b806ee0fc9097fa7bda7ac0109191c9c5e0a1ac),
+Godot had been developed by [Juan Linietsky](https://github.com/reduz) and
+[Ariel Manzur](https://github.com/punto-) (both still maintaining the project) for several
 years as an in-house engine, used to publish several work-for-hire titles.
 
-![Screenshot of a 3D scene in Godot Engine](https://raw.githubusercontent.com/godotengine/godot-design/master/screenshots/editor_tps_demo_1920x1080.jpg)
+![Screenshot of a 3D scene in the Godot Engine editor](https://raw.githubusercontent.com/godotengine/godot-design/master/screenshots/editor_tps_demo_1920x1080.jpg)
 
 ## Getting the engine
 
@@ -49,7 +50,7 @@ for compilation instructions for every supported platform.
 Godot is not only an engine but an ever-growing community of users and engine
 developers. The main community channels are listed [on the homepage](https://godotengine.org/community).
 
-To get in touch with the engine developers, the best way is to join the
+The best way to get in touch with the core engine developers is to join the
 [Godot Contributors Chat](https://chat.godotengine.org).
 
 To get started contributing to the project, see the [contributing guide](CONTRIBUTING.md).
@@ -62,8 +63,8 @@ It is maintained by the Godot community in its own [GitHub repository](https://g
 The [class reference](https://docs.godotengine.org/en/latest/classes/)
 is also accessible from the Godot editor.
 
-The official demos are maintained in their own [GitHub repository](https://github.com/godotengine/godot-demo-projects)
-as well.
+We also maintain official demos in their own [GitHub repository](https://github.com/godotengine/godot-demo-projects)
+as well as a list of [awesome Godot community resources](https://github.com/godotengine/awesome-godot).
 
 There are also a number of other
 [learning resources](https://docs.godotengine.org/en/latest/community/tutorials.html)