add myself, Mark Atwood, me@mark.atwood.name

Change-Id: I16570962bc8dfb33bf7f500d8dbabbdbd997ca40
Reviewed-on: https://review.openstack.org/32063
Approved: Monty Taylor <mordred@inaugust.com>
Reviewed-by: Monty Taylor <mordred@inaugust.com>
Tested-by: Jenkins