docs: Add link to GitHub in sidebar

Fixes: #484

Signed-off-by: John Andersen <[email protected]>

Author: pdxjohnny

docs/index.rst

@@ -37,8 +37,6 @@ The web UI (under heavy development) can be found `here <webui/>`_.
 This is the documentation for the latest release, documentation for the master
 branch can be found `here <master/index.html>`_.
 
-DFFML's source code can be found on `GitHub <https://github.com/intel/dffml>`_.
-
 .. toctree::
     :glob:
     :maxdepth: 2
@@ -72,6 +70,7 @@ DFFML's source code can be found on `GitHub <https://github.com/intel/dffml>`_.
     :maxdepth: 2
     :caption: Community
 
+    GitHub <https://github.com/intel/dffml>
     publications
     contact
     contributing/index