Update docs badge in README

Update the URL of the docs badge to include it from inch-ci.org instead of inch-pages.github.io (the former being the successor of the Inch Pages project).

[ci skip]

README.md

@@ -8,7 +8,7 @@ them later.
   - [![Code Climate](https://img.shields.io/codeclimate/github/resque/resque.svg)](https://codeclimate.com/github/resque/resque)
   - [![Build Status](https://img.shields.io/travis/resque/resque/master.svg)](https://travis-ci.org/resque/resque)
   - [![Coverage Status](https://img.shields.io/coveralls/resque/resque/master.svg)](https://coveralls.io/r/resque/resque)
-  - [![Inline docs](http://inch-pages.github.io/github/resque/resque.svg)](http://inch-pages.github.io/github/resque/resque)
+  - [![Inline docs](http://inch-ci.org/github/resque/resque.svg)](http://inch-ci.org/github/resque/resque)
 
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