Use list continuation to have better wrapping. This accounts for most of
the changes because it reindents a lot of text without applying other
changes.
Use cross-referencing for interlinking and the gitlink macro for pointing
to other tools in the git suite.
Signed-off-by: Jonas Fonseca <fonseca@diku.dk> Signed-off-by: Junio C Hamano <junkio@cox.net>