Added license

Yep

Author: gamedolphin

README.md

@@ -5,3 +5,8 @@ A simple Tetris clone created using HTML5/JavaScript/Phaser. All assets are open
 to learn and modify. 
 
 Use arrow keys to control the blocks. Get 20 lines to win. :)
+
+LICENSE
+==================
+
+Provided under the [MIT](http://opensource.org/licenses/MIT) license.