Fixed #21047 -- Added CLA mesage on the new contributor advice doc
Fixed #21035 -- Changed docs to treat the acronym SQL phonetically.

The documentation and comments now all use 'an' to
refer to the word SQL and not 'a'.
Fixed #21035 -- Changed docs to treat the acronym SQL phonetically.

The documentation and comments now all use 'an' to
refer to the word SQL and not 'a'.
Merge branch 'master' of github.com:EricBoersma/django
Merge branch 'master' of github.com:django/django

Conflicts:
	docs/internals/contributing/writing-documentation.txt