Explain how to use it in the README file

[arreche]

bundle install && librarian-chef install && vagrant up

http://docker.io/documentation/installation/macos.html

[thoward]

Thanks! Sorry for the confusion, the cookbook at http://github.com/thoward/docker-cookbook isn't completed yet and is just a stub. I hope to have that done in the next few days. I'll definitely include better instructions once it's working.