Updated my bio.

This better reflects why I was invited to the team.
Fixed #23609 -- Fixed IntegrityError that prevented altering a NULL column into a NOT NULL one due to existing rows

Thanks to Simon Charette, Loic Bistuer and Tim Graham for the review.
Fixed #23616 - lookup_allowed AttributError fix

	If field.rel has no get_related_field(), rel_name is set to None

	Thanks timgraham for review