Update README.md

Author: gkorland

README.md

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 # RediSearch Python Client
+[![Mailing List](https://img.shields.io/badge/Mailing%20List-RediSearch-blue)](https://groups.google.com/forum/#!forum/redisearch)
+[![Gitter](https://badges.gitter.im/RedisLabs/RediSearch.svg)](https://gitter.im/RedisLabs/RediSearch?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
 
 This is a python search engine library that utilizes the [RediSearch Redis Module](http://redisearch.io) API.