Add gitter badge

README.md

@@ -6,6 +6,7 @@
 
 [![Travis builds](https://img.shields.io/travis/bioconda/bioconda-recipes/master.svg?style=flat-square&label=builds)](https://travis-ci.org/bioconda/bioconda-recipes)
 [![Travis tests](https://img.shields.io/travis/bioconda/bioconda-tests/master.svg?style=flat-square&label=tests)](https://travis-ci.org/bioconda/bioconda-tests)
+[![Gitter](https://badges.gitter.im/bioconda/bioconda-recipes.svg)](https://gitter.im/bioconda/Lobby?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
 
 [Conda](http://anaconda.org) is a platform- and language-independent package
 manager that sports easy distribution, installation and version management of