Sorry NOT a BUG: How do I get access to Azure CLI slack to ask questions?

### Describe the bug

Sorry NOT a BUG: How do I get access to Azure CLI slack channel to ask questions? I tried several things to no avail. It says contact an AzureCLI_Public admin but that process is not clear either.

I am trying to specifically ask a question about ADO Pull requests and how to see if any commits on source branch have not been merged into target branch.

in particular we are trying to do this.

$return = az repos pr create `
--project $project `
--repository $repository `
--source-branch $sourcebranch `
--target-branch $targetbranch ` |
ConvertFrom-Json;

And then look at the $return for details on commits but nothing shows?

https://learn.microsoft.com/en-us/answers/questions/1380716/is-there-an-azure-cli-(azure-repos-pr-etc-)-comman

### Related command

NA

### Errors

NA

### Issue script & Debug output

NA

### Expected behavior

NA

### Environment Summary

NA

### Additional context

_No response_