update readme
update readme

trown/puppet-ironic,trown/puppet-ironic,toby82/puppet-ironic,varunarya10/puppet-ironic,fuel-infra/puppet-ironic,fuel-infra/puppet-ironic,openstack/puppet-ironic,rdo-puppet-modules/puppet-ironic,JioCloud/puppet-ironic,fuel-infra/puppet-ironic,rdo-puppet-modules/puppet-ironic,trown/puppet-ironic,openstack/puppet-ironic,toby82/puppet-ironic,openstack/puppet-ironic,redhat-cip/puppet-ironic