Setup SimpleForm with Zurb Foundation

One of the requirements for our tutorial application is a contact form.
We could set up styling for the form when we implement the contact page,
but it is convenient to set up form styling now, as we would if we were
adding multiple forms to the site.

Rails provides a set of view helpers for forms. They are described in
the RailsGuides: Rails Form Helpers document. But, as you’ve learned,
Rails has more than one stack, and most developers use an alternative
set of form helpers named SimpleForm, provided by the SimpleForm gem.
The SimpleForm helpers are more powerful, easier to use, and offer an
option for styling with Zurb Foundation.