Fixed a few typos in the unittest2 docs introduced in [14139].
Fixed a few typos in the unittest2 docs introduced in [14139].

--HG--
extra : convert_revision : svn%3Abcc190cf-cafb-0310-a4f2-bffc1f526a37/django/trunk%4014149

adieu/django-nonrel,adieu/django-nonrel,adieu/django-nonrel