Merge pull request #65 from futurecore/update-badge

RTD badge points to canonical URL.

README.md

@@ -4,7 +4,7 @@
 [![Coverage Status](https://coveralls.io/repos/futurecore/revelation/badge.svg?branch=master&service=github)](https://coveralls.io/github/futurecore/revelation?branch=master)
 [![Code Health](https://landscape.io/github/futurecore/revelation/master/landscape.svg?style=flat)](https://landscape.io/github/futurecore/revelation/master)
 [![Requirements Status](https://requires.io/github/futurecore/revelation/requirements.svg?branch=master)](https://requires.io/github/futurecore/revelation/requirements/?branch=master)
-[![Documentation Status](https://readthedocs.org/projects/revelation/badge/?version=latest)](https://readthedocs.org/projects/revelation/?badge=latest)
+[![Documentation Status](https://readthedocs.org/projects/revelation/badge/?version=latest)](http://www.revelation-sim.org/en/latest/?badge=latest)
 
 
 This project contains **work in progress** towards a simulator for the Adapteva Epiphany chip.