Update the license and contributing links on the sidebar to point to their respective files in the codebase (#56)

Author: Jaredl-Code

SourceCode/_Sidebar.md

@@ -3,10 +3,10 @@
 ## [Home](Home)
 
 - [How to Get Involved](how_to_involved)
-- [How to Contribution](contribution)
+- [How to Contribution](https://github.com/TheSuperHackers/GeneralsGameCode/blob/main/CONTRIBUTING.md)
 - [Replays for testing](replay_testing)
 - [Community forks](forks)
-- [License](license)
+- [License](https://github.com/TheSuperHackers/GeneralsGameCode/blob/main/LICENSE.md)
 - [Credits](credits)
 - [Changelog](changelog)
 - [FAQ](faq)