On: Podman can transfer container images without a registry

[westurner]

Does `podman trust` also work yet? Shell commands from the first Docker docs link above:

  docker trust key generate jeff
  # docker trust key load key.pem --name jeff

  docker trust signer add --key cert.pem jeff registry.example.com/admin/demo
  docker trust sign registry.example.com/admin/demo:1

  export DOCKER_CONTENT_TRUST=1
  docker push registry.example.com/admin/demo:1


  docker trust inspect --pretty registry.example.com/admin/demo:1

  docker trust revoke registry.example.com/admin/demo:1