Bug 9250 - Followup to add koha-*-sip commands to koha-common.xml

Bug 9250 - Followup to add koha-*-sip commands to koha-common.xml

The original patch for Bug 9250 did not add the new commands to
debian/docs/koha-common.xml, which functions as a sort of table
of contents for the real commands. This patch adds them.

Signed-off-by: Robin Sheat <robin@catalyst.net.nz>
Simple documentation patch
Signed-off-by: Jared Camins-Esakov <jcamins@cpbibliography.com>
(cherry picked from commit 38b1fd99c4e3a2ae3a944c5ba0b17189da3feef5)

Signed-off-by: Jared Camins-Esakov <jcamins@cpbibliography.com>