[Starlingx-discuss] [docs][distcloud] docker registry certificate need to have "registry.local" in SAN list

[Andy Ning]

Hi,

With change https://review.opendev.org/#/c/695308/, new docker registry 
certificate to be installed in subcloud need to have "registry.local" in 
the certificate's SAN DNS name list, including docker registry 
certificate installed in Central Cloud and get synced to Subcloud.

Thanks,

Andy Ning