[1.6.x] Fixed #21567 -- Documented how to deploy multiple sites using the sites framework.
[1.6.x] Fixed #21567 -- Documented how to deploy multiple sites using the sites framework.

Backport of 7b9537fb27 from master

felixjimenez/django,django-nonrel/django,django-nonrel/django,django-nonrel/django,felixjimenez/django,django-nonrel/django,redhat-openstack/django,redhat-openstack/django,felixjimenez/django,redhat-openstack/django,redhat-openstack/django,felixjimenez/django