Added badges to README.md

Author: othercodes

README.md

@@ -1,3 +1,8 @@
 # Contracts
 
+[![Latest Stable Version](https://poser.pugx.org/complex-heart/contracts/v)](//packagist.org/packages/complex-heart/contracts) 
+[![Total Downloads](https://poser.pugx.org/complex-heart/contracts/downloads)](//packagist.org/packages/complex-heart/contracts) 
+[![License](https://poser.pugx.org/complex-heart/contracts/license)](//packagist.org/packages/complex-heart/contracts)
+
 Common interfaces for PHP Complex Heart SDK.
+