Replaced references to Opscode
Replaced references to Opscode

The README still included references to Opscode sites
The references were updated to point to correct Chef sites

Change-Id: I15f68d7a6946e51a4e82ee4b4b6af0f9f5fc3b19

mohitsethi/openstack-chef-repo,Kmotiko/openstack-chef-repo,mattray/openstack-chef-repo,mohitsethi/openstack-chef-repo,kevinlowrie/openstack-chef-repo,csibbitt/openstack-chef-repo,AlphaStaxLLC/openstack-chef-repo,sathvikm/openstack,csibbitt/openstack-chef-repo,AlphaStaxLLC/openstack-chef-repo,kevinlowrie/openstack-chef-repo,apealive-cookbooks/openstack-chef-repo,sathvikm/openstack,apealive-cookbooks/openstack-chef-repo,Kmotiko/openstack-chef-repo