tweak the server command docs
tweak the server command docs

the formatting used for the server commands is not the same as
the other command docs, this patch addresses that issue.

Change-Id: I5f31cf6a317d9eb35ec46185800fade3dd956dc4

dtroyer/python-openstackclient,openstack/python-openstackclient,redhat-openstack/python-openstackclient,BjoernT/python-openstackclient,openstack/python-openstackclient,BjoernT/python-openstackclient,dtroyer/python-openstackclient,redhat-openstack/python-openstackclient