Updating ironic-install role README
Updating ironic-install role README

Updating the README file with additional pertinant information
including variables and an example playbook.

EntropyWorks/bifrost,juliakreger/bifrost,bcornec/bifrost,bcornec/bifrost,openstack/bifrost,devananda/bifrost,EntropyWorks/bifrost,devananda/bifrost,juliakreger/bifrost,openstack/bifrost