Adding github wiki

Author: ppelikan

README.md

@@ -3,8 +3,11 @@ This is a general purpose map editor for 2D games. It can be used to create game
 
 [![YouTube video](http://img.youtube.com/vi/3WjJj5PqOD4/0.jpg)](http://www.youtube.com/watch?v=3WjJj5PqOD4)
 
-Getting started YouTube video: http://www.youtube.com/watch?v=3WjJj5PqOD4<br>
-Download compiled ready to use version here: https://ppelikan.itch.io/map-editor
+Getting started YouTube video: http://www.youtube.com/watch?v=3WjJj5PqOD4 
+
+Download compiled ready to use version here: https://ppelikan.itch.io/map-editor 
+
+Find out how to use MapEditor with your game: https://github.com/ppelikan/game-map-editor/wiki 
 
 ### Compiling