Add documentation for git-imap-send.
Add documentation for git-imap-send.

Signed-off-by: Mike McCormack <a17fed27eaa842282862ff7c1b9c8395a26ac320@codeweavers.com>
Signed-off-by: Junio C Hamano <dc50d1021234060e53ec42a77d526afa2fe07479@cox.net>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git