Move Contributions section of README to **CONTRIBUTING.md** ([example](https://github.com/interactive-pioneers/iptools-jquery-populator/blob/master/CONTRIBUTING.md)) for automated guidelines: <img width="957" alt="screen shot 2015-08-05 at 1 36 13" src="https://cloud.githubusercontent.com/assets/370576/9075220/9beaa7a2-3b12-11e5-91b0-2f326e4fcb1e.png">
