Request type

Enhancement

What needs to get done

Hey team!
It would be nice if the doc on how publishing a rock

also had a small section explaining how to authenticate using --dest-creds. IMHO, this may be valuable to some people going through the doc.
I'll contribute a small addition for this as soon as I can.

Documentation location

https://documentation.ubuntu.com/rockcraft/stable/how-to/rocks/publish-a-rock/

Additional information

No response