title: Generating a new secrets.yml file
body: <p>I'm trying to clone a rails repository from github, but it doesn't have a secrets.yml file.  When I try to run the app from rails server, I get the error</p>
  
  <p>Missing <code>secret_key_base</code> for 'development' environment, set this value in <code>config/secrets.yml</code></p>
  
  <p>I know what the structure of the file is supposed to look like, but is there a way for me to generate keys to use the development environment?</p>