ciao: add openstack/keystone demo project creation command

A "demo" project is needed for the rest of the demostration commands shown.
Something/somebody was pre-creating this automagically in our dev
environment internally, but it needs done manually normally and that needs
documented.

Signed-off-by: Tim Pepper <timothy.c.pepper@linux.intel.com>

source/ciao-cluster-setup.rst

@@ -158,6 +158,7 @@ We need a few configuration points. For example:::
   $ openstack service create --name ciao compute
   $ openstack user create --password hello csr
   $ openstack role add --project service --user csr admin
+  $ openstack project create --description "Demostration Tenant Project" demo
   $ openstack user create --password giveciaoatry demo
   $ openstack role add --project demo --user demo user