Comment parameters for registry in docker tls env

Comment parameters for registry in docker tls env

This commit brings change from
I3896fa2ea7caa603186f0af04f6d8382d50dd97a to
docker-services-tls-everywhere.yaml, which original commit message was:

These duplicate the defaults in puppet/services/docker.yaml and
break things if you include an environment file (e.g that generated
by quickstart containers-default-parameters.yaml) before the
docker.yaml.

Instead it's probably more helpful to include the commented lines
showing how to enable use of a local docker registry.

Change-Id: Ifa95ef60bc17bd2638ebb6aebf77a819b28c9f0b
Related-Bug: #1691524