Help reminder

Using url https://live.driveshare.org:8443
Error: Must specify farming address if one is not available.

Can you add something along the lines of Run downstream --help for additional details?

[EmergentBehavior]

Want to submit a pull request? :) It would just be updating a few strings in shell.py and maybe the corresponding unit tests.

If so, please fill out Storj CLA.