Update README.md

Author: Designmodo

README.md

@@ -11,7 +11,7 @@ Thanks for supporting our website and enjoy!
 
 + [Demo page](http://designmodo.github.com/Flat-UI/)
 + [Official page](http://designmodo.com/flat-free)
-+ [Subscribe for Premium Version of Flat UI](http://designmodo.com/flat/)
++ [Premium Version of Flat UI](http://designmodo.com/flat/)
 
 ## Changelog