Update openstack-blueprint.yaml
Update openstack-blueprint.yaml

fixed typo
yoramw/cloudify-nodecellar-example,ShayHassidim/cloudify-nodecellar-example,EarthmanT/cloudify-nodecellar-example,EarthmanT/cloudify-nodecellar-example,ShayHassidim/cloudify-nodecellar-example,cloudify-cosmo/cloudify-nodecellar-example,cloudify-cosmo/cloudify-nodecellar-example,yoramw/cloudify-nodecellar-example