Update README.md

Author: gkorland

README.md

@@ -6,7 +6,7 @@
 [![Known Vulnerabilities](https://snyk.io/test/github/RediSearch/redisearch-py/badge.svg?targetFile=requirements.txt)](https://snyk.io/test/github/RediSearch/redisearch-py?targetFile=requirements.txt)
 
 # RediSearch Python Client
-[![Mailing List](https://img.shields.io/badge/Mailing%20List-RediSearch-blue)](https://groups.google.com/forum/#!forum/redisearch)
+[![Forum](https://img.shields.io/badge/Forum-RediSearch-blue)](https://forum.redislabs.com/c/modules/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.