documentation

[rstormsf]

Few things to explain would be really helpful

servers:
      - region_id: 8
        size_id: 63
        image_id: 7053293
        internal_id: apps.1

how to find those values and understand for future users of repo

another confusion is with ssh keys I think is that in ansible.cfg we have:

[defaults]
private_key_file=~/.ssh/myapp.pem

then we have in
extra/capistrano/deploy.rb

17:  keys: ["#{ENV['HOME']}/.ssh/private_key.pem"]

but in README.md:

Configure SSH private / public keys
~/.ssh/app_private_key.pem