Update README.md

Author: ajitsing

README.md

@@ -2,7 +2,7 @@
 [![Gem Version](https://badge.fury.io/rb/apkToJava.svg)](https://badge.fury.io/rb/apkToJava)
 ![Gem Downloads](http://ruby-gem-downloads-badge.herokuapp.com/apkToJava?type=total)
 [![Open Source Love](https://badges.frapsoft.com/os/v1/open-source.svg?v=102)](https://opensource.org/licenses/MIT)
-[![Twitter](https://img.shields.io/twitter/url/http/shields.io.svg?style=social)](https://twitter.com/Ajit5ingh)
+[![Twitter Follow](https://img.shields.io/twitter/follow/Ajit5ingh.svg?style=social)](https://twitter.com/Ajit5ingh)
 
 A ruby gem to view android apk as java code in GUI