colorls dependency

[canibanoglu]

Hello,

I've shamelessly ripped off jarvis and have been modifiying a bit for myself and one thing I've noticed that there is a dependency on colorls that doesn't appear in the installation scripts. The result is you can't use ls after setup until you install colorls.

I'm happy to send in a PR to do gem install colorls :)

[ctaylo21]

Ah good catch! I recently "deprecated" the install script in a sense because it's painful to maintain it very rarely gets used. But I'm happy to update the docs to include the colorls installation command as a manual step. If you want to do a PR, that would be great! If not, I'll add it sometime this week. Thanks again!