switch to codeclimate coverage

README.md

@@ -3,7 +3,7 @@
 [![Gem Version](https://badge.fury.io/rb/rubocop-rspec.png)](https://rubygems.org/gems/rubocop-rspec)
 [![Dependency Status](https://gemnasium.com/nevir/rubocop-rspec.png)](https://gemnasium.com/nevir/rubocop-rspec)
 [![Build Status](https://secure.travis-ci.org/nevir/rubocop-rspec.png?branch=master)](http://travis-ci.org/nevir/rubocop-rspec)
-[![Coverage Status](https://coveralls.io/repos/nevir/rubocop-rspec/badge.png?branch=master)](https://coveralls.io/r/nevir/rubocop-rspec)
+[![Coverage Status](https://codeclimate.com/github/nevir/rubocop-rspec/badges/coverage.png)](https://codeclimate.com/github/nevir/rubocop-rspec/coverage)
 [![Code Climate](https://codeclimate.com/github/nevir/rubocop-rspec.png)](https://codeclimate.com/github/nevir/rubocop-rspec)
 
 RSpec-specific analysis for your projects, as an extension to