Docs update

README.txt

@@ -168,3 +168,6 @@ the `__call__` method.
 
 The distribution contains tests and documentation. The tests require
 `unittest2 <http://pypi.python.org/pypi/unittest2>`_ to run.
+
+Docs from the in-development version of `mock` can be found on
+`readthedocs.org <http://mock.readthedocs.org>`_.

docs/index.txt

@@ -358,6 +358,9 @@ Documentation for older versions of mock:
 * `mock 0.7 <http://www.voidspace.org.uk/python/mock/0.7/>`_
 * `mock 0.6 <http://www.voidspace.org.uk/python/mock/0.6.0/>`_
 
+Docs from the in-development version of `mock` can be found on
+`readthedocs.org <http://mock.readthedocs.org>`_.
+
 
 Terminology
 ===========