Update docs

docs/community.md

@@ -0,0 +1,14 @@
+Support chat
+=======================
+
+We know that blockchain ecosystem is very new and that lots of information is scattered around the web.
+That is why we created a community support channel where we and other users try to answer your questions if
+you get stuck using Remix. Please, join [the community](https://gitter.im/ethereum/remix) and ask community for help.
+
+For anyone who is interested in developing a custom plugin for Remix or who wants to contribute to the codebase,
+we opened [contributors' channel](https://gitter.im/ethereum/remix-dev) specially for developers working on Remix tool.
+
+We would kindly ask you to respect the space and to use it for
+getting help with your work and the developers' channel for discussions related to working on Remix codebase. If you have
+ideas for collaborations or you want to promote your project, try to find some more appropriate channels to do so. Or you can contact
+main contributors directly on Gitter or Twitter. 

docs/index.rst

@@ -54,5 +54,5 @@ This set of documents covers instructions on how to use Remix and some tutorials
    :caption: Code contribution guide
 
    code_contribution_guide
-   support
-   support_tab
+   Community
+   support_tab