[Issue] 'azd pipeline config --help' does not mention 'GitHub' is the default value for 'provider'

[rpothin]

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Output from azd version
Run azd version and copy and paste the output here:

Output from az version
Run az version and copy and paste the output here (minimum required version is 2.38.0):

Describe the bug
Running the azd pipeline config --help command I don't see an indication regarding the fact that GitHub would be the default value for the provider parameter:

Also, I don't find this information clearly exposed in the documentation page: azd-pipeline-config

To Reproduce
Run azd pipeline config --help.

Expected behavior
It could be interesting to have something like below for the provider parameter running the azd pipeline config --help command - to be consistent with the description of the remote-name parameter:

--provider string The pipeline provider to use (GitHub and Azdo supported). (default "GitHub")

Environment
Information on your environment: Terminal with PowerShell on Windows 10

Additional context
Nothing more to add, but do not hesitate to ask me for me details if needed.

[rajeshkamal5050]

@Austinauth can you also factor this as part of azd help UX improvements #822

[Austinauth]

@rajeshkamal5050 Will do. I'll make a note to investigate when I start #822.