Hi! I was checking out this cool library when I noticed this tiny typo. Hope it's fine to submit a fix and it was not intentional. Otherwise, I apologize of course. :)

Working-on-GNU-Linux.md

@@ -1,4 +1,4 @@
-## Raylib-Quckstart, the simple solution to get started quickly.
+## Raylib-Quickstart, the simple solution to get started quickly.
 The quickstart is a cross platform template for all desktop platforms that will setup raylib automatically.
 
 https://github.com/raylib-extras/raylib-quickstart