update readme year

Author: leafo

README.md

@@ -21,7 +21,7 @@ busted
 
 ## License (MIT)
 
-Copyright (C) 2012 by Leaf Corcoran
+Copyright (C) 2013 by Leaf Corcoran
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal