Various information

$sub1(refs/files.md) $sub1(refs/dir.md) $sub1(refs/show.md) $sub1(refs/diff.md) $sub1(refs/md5.md) $sub1(refs/info.md) $sub1(refs/changes.md)

$sub1(refs/users.md)

$sub1(refs/groups.md) $sub1(refs/group-show.md)

$sub1(refs/user-show.md)

$sub1(refs/commit-show.md)