Readme update: credits

Author: Designmodo

README.md

@@ -13,4 +13,17 @@ http://designmodo.com/flat-free
 ATENTION! Buy Now Premium version of Flat UI! - http://designmodo.com/flat/
 
 
+## Authors
+
+**Sergey Shmidt**
+
++ [http://shmidt.in](http://shmidt.in)
++ [http://twitter.com/monstercritic](http://twitter.com/monstercritic)
+
+**Sergii Iurevych**
+
++ [http://twitter.com/iurevych](http://twitter.com/iurevych)
++ [http://github.com/iurevych](http://github.com/iurevych)
+
+## Typeface
 Flat UI Free is made using the Lato typeface, which can be downloaded for free here: http://www.google.com/webfonts/specimen/Lato