Documentation for Security Groups for baremetal servers
Documentation for Security Groups for baremetal servers

This patch updates the Ironic documentation to describe how to
configure security groups for baremetal servers.

Change-Id: I19b42f0fcecc7e4952de452e8576a1ad87e73b61
Closes-bug: 1594242

NaohiroTamura/ironic,openstack/ironic,SauloAislan/ironic,pshchelo/ironic,pshchelo/ironic,openstack/ironic,NaohiroTamura/ironic,SauloAislan/ironic