Update link to project's repository.

Author: rm-code

ScreenManager.lua

@@ -23,7 +23,7 @@
 local ScreenManager = {
     _VERSION     = '1.3.0',
     _DESCRIPTION = 'Screen/State Management for the LÖVE framework',
-    _URL         = 'https://bitbucket.org/rmcode/screenmanager/',
+    _URL         = 'https://github.com/rm-code/screenmanager/',
 };
 
 -- ------------------------------------------------