Proofread changes to docs/contributing.txt from [3771]

git-svn-id: http://code.djangoproject.com/svn/django/trunk@3833 bcc190cf-cafb-0310-a4f2-bffc1f526a37

docs/contributing.txt

@@ -259,10 +259,10 @@ The tests cover:
 We appreciate any and all contributions to the test suite!
 
 The Django tests all use the testing infrastructure that ships with Django for
-testing applications. See `Testing Django Applications`_ for an explanation of
+testing applications. See `Testing Django applications`_ for an explanation of
 how to write new tests.
 
-.. _Testing Django Applications: http://www.djangoproject.com/documentation/testing/
+.. _Testing Django applications: http://www.djangoproject.com/documentation/testing/
 
 Running the unit tests
 ----------------------
@@ -273,7 +273,7 @@ To run the tests, ``cd`` to the ``tests/`` directory and type::
 
 Yes, the unit tests need a settings module, but only for database connection
 info -- the ``DATABASE_ENGINE``, ``DATABASE_USER`` and ``DATABASE_PASSWORD``.
-You will also need a ``ROOT_URLCONF`` setting (it's value is ignored; it just
+You will also need a ``ROOT_URLCONF`` setting (its value is ignored; it just
 needs to be present) and a ``SITE_ID`` setting (any integer value will do) in
 order for all the tests to pass.