Finish the Prototyping Rails Applications Tutorial

[jlong]

Doc: http://get-serve.com/documentation/rails-prototyping-tutorial

File: https://github.com/jlong/serve/blob/master/website/views/documentation/rails-prototyping-tutorial.html.erb

[ntalbott]

Do you have an outline of what else you think the doc needs?

[jlong]

I think the main thing it needs is an explanation of view helpers. It would be good to run through it all and make sure it's all accurate for the latest version of Serve.