Start adding 0.6 release notes
Start adding 0.6 release notes

This adds the first release note items.

Change-Id: I41315c671cd11defc7508f1f2af593091adfd557

savinash47/openstack-doc-tools,openstack/openstack-doc-tools,savinash47/openstack-doc-tools,openstack/openstack-doc-tools,savinash47/openstack-doc-tools