Improve ockam enroll —-help text by adding doc comment for verbose flag

[nazmulidris]

Context

When a user types ockam enroll —-help in their terminal, they are presented with long help text. You can improve this text content by adding the help information for the --verbose flag, which is confusing right now.

To install Ockam command from a prebuilt binary or from source, please take a look at this README.md.

Current behavior

1. When you run ockam enroll --help in your terminal you will see the following help text.

Suggested fix

Add doc comment to GlobalArgs::verbose field:

/// Increase verbosity of trace messages by repeating the flag. Learn more at https://crates.io/crates/clap-verbosity-flag”

Make the change to GlobalArgs in this file: /ockam_command/src/lib.rs#L159.

Once the fix is applied, it should look like the following.

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[rjtch]

Hey @nazmulidris i want to work on this task and this one #6064

[nazmulidris]

@rjtch Awesome, this is all yours. Let us know if you have any questions as you explore.

[nazmulidris]

@rjtch In order to be able to assign you to the other issue #6064 , please make a comment on that issue and I will be able to do so 👍🏽