Update README.md

Author: ElMassimo

README.md

@@ -3,7 +3,7 @@ Mongoid::Includes
 [![Gem Version](https://badge.fury.io/rb/mongoid_includes.svg)](http://badge.fury.io/rb/mongoid_includes)
 [![Build Status](https://travis-ci.org/ElMassimo/mongoid_includes.svg)](https://travis-ci.org/ElMassimo/mongoid_includes)
 [![Test Coverage](https://codeclimate.com/github/ElMassimo/mongoid_includes/badges/coverage.svg)](https://codeclimate.com/github/ElMassimo/mongoid_includes)
-[![Code Climate](https://codeclimate.com/github/ElMassimo/mongoid_includes.png)](https://codeclimate.com/github/ElMassimo/mongoid_includes)
+[![Code Climate](https://codeclimate.com/github/ElMassimo/mongoid_includes.svg)](https://codeclimate.com/github/ElMassimo/mongoid_includes)
 [![Inline docs](http://inch-ci.org/github/ElMassimo/mongoid_includes.svg)](http://inch-ci.org/github/ElMassimo/mongoid_includes)
 [![License](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/ElMassimo/mongoid_includes/blob/master/LICENSE.txt)