`bin/gemstash` fails with `Could not find command "readme"`

This is specifically about running gemstash in development, but I'm able to do things like `bin/gemstash start`, but `bin/gemstash` or anything that would do help usage fails like: ``` ❯ bin/gemstash Could not find command "readme". ``` This is the only place I can find readme mentioned: https://github.com/rubygems/gemstash/blob/e0e1b4b920ac29b9f777e0cd0b9325e3d73f5259/lib/gemstash/cli.rb#L40-L49