No autocomplete feedback for Ledger custom derivation path

[Jago Figueroa]

Describe the bug
Testing this feature we noticed that there is no feedback provided for this new feature

To Reproduce
Access a safe from the cli and press tab until it recommends load_ledger_cli_owners with the optiuons abailable for this command

Actual behavior

Missing [--derivation-path ] visible on the readme

Expected behavior
Add [--derivation-path ]