Note that in the documentation for git-pull, documentation for the
--progress option is displayed under the "Options related to fetching"
subtitle via fetch-options.txt.

Also, update the documentation of the -q/--quiet option for git-pull to
mention its effect on progress reporting during fetching.
Signed-off-by: NTay Ray Chuan <rctay89@gmail.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>