Basic project setup (#4)

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+Welcome to ``google-auth``'s documentation!
+===========================================
+
+Contents:
+
+.. toctree::
+   :maxdepth: 2
+
+   reference/modules
+
+Reference documentation
+=======================
+
+The :doc:`reference documentation <reference/modules>` details the complete API for :mod:`google.auth` and :mod:`google.oauth2`.
+
+Indices and tables
+==================
+
+* :ref:`genindex`
+* :ref:`modindex`
+* :ref:`search`
+