Add some fixes to the service-tag spec

This commit adds 2 fixes to the add-service-tags spec file. The first
is that it removes the '#' from the license statement at the top of
the file. These were unnecessary and it messes with the formatting from
a generated doc. The second fix is add a missing work item from the
list at the bottom of the spec.

Change-Id: Icf54f0ea95217aeb026eb788b960d87682b4a8ec
Merge "Add some fixes to the service-tag spec"