docs: Update Freenode to OFTC

Change-Id: I2de39baabc3bf4c507f5e6840696f48e7ec737ae

Author: priteau

README.rst

@@ -8,7 +8,7 @@ CloudKitty dashboard
 .. Change things from this point on
 
 :Wiki: `CloudKitty Wiki`_
-:IRC: #cloudkitty @ freenode
+:IRC: #cloudkitty @ oftc.net
 
 
 Horizon dashboard for CloudKitty.

doc/source/contributor/contributing.rst

@@ -11,7 +11,7 @@ with cloudkitty-dashboard.
 
 Communication
 ~~~~~~~~~~~~~
-* IRC channel #cloudkitty at FreeNode
+* IRC channel #cloudkitty at `OFTC <http://oftc.net>`_
 * Mailing list (prefix subjects with ``[cloudkitty]`` for faster responses)
   http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-discuss