Jari Aalto noticed a handful places in git-daemon documentation
that need to be improved.
* --inetd makes --pid-file to be ignored, in addition to --user
and --group
* receive-pack service was not described at all. We should, if
only to warn about the security implications of it.
* There was no example of per repository configuration.
Signed-off-by: Junio C Hamano <gitster@pobox.com>