Add documentation note about LookupAlreadyRegistered errors. Fixes #28.
Add documentation note about LookupAlreadyRegistered errors. Fixes #28.

makinacorpus/django-selectable,mlavin/django-selectable,affan2/django-selectable,mlavin/django-selectable,affan2/django-selectable,affan2/django-selectable,makinacorpus/django-selectable,mlavin/django-selectable