Update README.rst

README.rst

@@ -8,7 +8,7 @@ WebSocket & WAMP for Python on Twisted and asyncio.
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 | **Quick Links**: `Source Code <https://github.com/crossbario/autobahn-python>`__ - `Documentation <https://autobahn.readthedocs.io/en/latest/>`__ - `WebSocket Examples <https://autobahn.readthedocs.io/en/latest/websocket/examples.html>`__ - `WAMP Examples <https://autobahn.readthedocs.io/en/latest/wamp/examples.html>`__
-| **Community**: `Forum <https://gitter.im/crossbario/public>`__ - `StackOverflow <https://stackoverflow.com/questions/tagged/autobahn>`__ - `Twitter <https://twitter.com/autobahnws>`__ - `IRC #autobahn/chat.freenode.net <https://webchat.freenode.net/>`__
+| **Community**: `Forum <https://crossbar.discourse.group/>`__ - `StackOverflow <https://stackoverflow.com/questions/tagged/autobahn>`__ - `Twitter <https://twitter.com/autobahnws>`__ - `IRC #autobahn/chat.freenode.net <https://webchat.freenode.net/>`__
 | **Companion Projects**: `Autobahn|JS <https://github.com/crossbario/autobahn-js/>`__ - `Autobahn|Cpp <https://github.com/crossbario/autobahn-cpp>`__ - `Autobahn|Testsuite <https://github.com/crossbario/autobahn-testsuite>`__ - `Crossbar.io <https://crossbar.io>`__ - `WAMP <https://wamp-proto.org>`__
 
 Introduction