git-for-each-ref.txt: minor improvements Rewrapped synopsis and removed wrong asterisk behind --count option; clarified --sort=<key> description for multiple keys; documented that for-each-ref supports not only glob patterns but also prefixes like "refs/heads" as patterns, and that multiple patterns can be given. Signed-off-by: Lea Wiemann <LeWiemann@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>