Document standard CLI help format

[SteveLasker]

The CLI has a few options for how to represent help contents.
This issue tracks a proposal for that format to include:

• Include format for positional arguments
• Include format for global arguments
• Include format for examples
• Formatting, including the command and whether : is specified.

See #223 for an example for why a formatting template is needed across multiple PRs

[FeynmanZhou]

Hi @SteveLasker @yizha1 @shizhMSFT @iamsamirzon

I can start to work on this issue to add more examples to the CLI help doc in these source files and format for arguments.

[FeynmanZhou]

@SteveLasker Can you elaborate more on this issue? Do you want a CLI help doc template for each CLI command help information?

BTW, we are adding some examples to the CLI help doc to make it user-friendly, see this PR as an example.

[yizha1]

@SteveLasker we have CLI specs and help doc for each notation commands. Can we close this issue?

[yizha1]

Closed as we have CLI specs and CLI help in the output of commands.