Doc updates for 1.0
diff --git a/README.txt b/README.txt
index 93ee824..385db3c 100644
--- a/README.txt
+++ b/README.txt
@@ -2,6 +2,10 @@
your system under test with mock objects and make assertions about how they
have been used.
+mock is now part of the Python standard library, available as `unittest.mock <
+http://docs.python.org/py3k/library/unittest.mock.html#module-unittest.mock>`_
+in Python 3.3 onwards.
+
mock provides a core `MagicMock` class removing the need to create a host of
stubs throughout your test suite. After performing an action, you can make
assertions about which methods / attributes were used and arguments they were