[readme] Further investigation into hostnames
[readme] Further investigation into hostnames

Show off running more crosbymichael/redis and show the DNS records available
cptactionhank/skydock,cptactionhank/graveyard-skydock,artemkaint/docker-powerdns-dock,tianon/skydock,crosbymichael/skydock,yuriyf/skydock,artemkaint/docker-powerdns-dock,tianon/skydock,tianon/skydock,ms123s/skydock,artemkaint/docker-powerdns-dock,yuriyf/skydock,yonglehou/skydock,yonglehou/skydock,cptactionhank/graveyard-skydock,cptactionhank/skydock,cptactionhank/skydock,crosbymichael/skydock,ms123s/skydock,cptactionhank/graveyard-skydock