Added in the controller, views, and routes for the application.
Created the test for the contents of the Home page.
Modified the test for the home page to look for "Sample App".
Added the Capybara domain-specific language to the rspec helper file.
Changed the Home page view so that it will pass the test.
Created the test for the contents of the Help page.
Changed the Help page view so that it will pass the test, while also
fixing a syntax error in the rspec code.