[1.5.x] Fixed #20285 - Added missing commas in translation docs.
[1.5.x] Fixed #20285 - Added missing commas in translation docs.

Thanks cody.j.b.scott@

Backport of 9f7b277d2e from master

ccn-2m/django,imtapps/django-imt-fork,imtapps/django-imt-fork,bliti/django-nonrel-1.5,ccn-2m/django,bliti/django-nonrel-1.5,hasadna/django,alx-eu/django,alx-eu/django,alx-eu/django,hasadna/django,ccn-2m/django,hasadna/django,bliti/django-nonrel-1.5,ccn-2m/django,alx-eu/django,imtapps/django-imt-fork