Update README.md

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README.md

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+[![Build Status - master](https://travis-ci.org/BhallaLab/moose.svg?branch=master)](https://travis-ci.org/BhallaLab/moose)   [![Documentation Status](https://readthedocs.org/projects/moose-core/badge/?version=latest)](https://readthedocs.org/projects/moose-core/?badge=latest)
 
 # About