Mini doc improvements for test release (#16)

Author: fmaussion

README.rst

@@ -16,12 +16,14 @@ Get in touch
 - View the source code `on GitHub`_.
 - Report bugs or share your ideas on the `issue tracker`_.
 - Improve the model by submitting a `pull request`_.
+- Follow us on `Twitter`_.
 - Or you can always send us an `e-mail`_ the good old way.
 
 .. _e-mail: info@oggm.org
 .. _on GitHub: https://github.com/OGGM/rgitools
 .. _issue tracker: https://github.com/OGGM/rgitools/issues
 .. _pull request: https://github.com/OGGM/rgitools/pulls
+.. _Twitter: https://twitter.com/OGGM_org
 
 
 About
@@ -38,7 +40,3 @@ About
     .. image:: https://readthedocs.org/projects/rgitools/badge/?version=latest
         :target: http://rgitools.readthedocs.org/en/latest/?badge=latest
         :alt: Documentation status
-
-:Authors:
-
-    Fabien Maussion

docs/index.rst

@@ -40,11 +40,11 @@ Get in touch
 - Follow us on `Twitter`_.
 - Or you can always send us an `e-mail`_ the good old way.
 
-.. _e-mail: https://mailman.zfn.uni-bremen.de/cgi-bin/mailman/listinfo/oggm-users
+.. _e-mail: info@oggm.org
 .. _on GitHub: https://github.com/OGGM/rgitools
 .. _issue tracker: https://github.com/OGGM/rgitools/issues
 .. _pull request: https://github.com/OGGM/rgitools/pulls
-.. _Twitter: https://twitter.com/OGGM1
+.. _Twitter: https://twitter.com/OGGM_org
 
 
 About
@@ -61,8 +61,3 @@ About
     .. image:: https://readthedocs.org/projects/rgitools/badge/?version=latest
         :target: http://rgitools.readthedocs.org/en/latest/?badge=latest
         :alt: Documentation status
-
-:Authors:
-
-    `Fabien Maussion <https://fabienmaussion.info/>`_,
-    Johannes Landmann