What is the areas you experience the issue in?

Notation CLI

What is not working as expected?

In the list command spec
The output format in description is reference by digest:

<registry>/<repository>@<digest>
└── application/vnd.cncf.notary.signature
    ├──<digest_of_signature_manifest>
    └──<digest_of_signature_manifest>

But in the example, the output is reference by tag:

localhost:5000/net-monitor:v1
└── application/vnd.cncf.notary.signature
    ├── sha256:647039638efb22a021f59675c9449dd09956c981a44b82c1ff074513c2c9f273
    └── sha256:6bfb3c4fd485d6810f9656ddd4fb603f0c414c5f0b175ef90eeb4090ebd9bfa1

Which one is expected? Currently, the code always output the reference by digest.

What did you expect to happen?

Need to be decided.

How can we reproduce it?

run notation list $ref

Describe your environment

Linux x64

What is the version of your Notation CLI or Notation Library?

Notation RC.5