Update README.md

Author: FredEkstrand

README.md

@@ -2,6 +2,7 @@
 <a href='http://fredekstrand.readthedocs.io/en/latest/?badge=latest'>
     <img src='https://readthedocs.org/projects/fredekstrand/badge/?version=latest' alt='Documentation Status' />
 </a>
+<a href="https://badge.fury.io/gh/FredEkstrand%2FEnigmaBinaryCipher"><img src="https://badge.fury.io/gh/FredEkstrand%2FEnigmaBinaryCipher.svg" alt="GitHub version" height="19"></a>
 <br/>
 [Enigma Binary Cipher API](http://fredekstrand.github.io/)
 <br/>