Fix docs about --freeze
Fix docs about --freeze

--HG--
extra : rebase_source : 0e7c60894a752a24d4f545cc712e2520f54cee6b

nimnull/django-south,RaD/django-south,nimnull/django-south,RaD/django-south,philipn/django-south,philipn/django-south,RaD/django-south