Add Haml to Gemfile
Require application file in config.ru file
Require Rack gem for tests
Require Haml in application for templates
Create test for testing routes
Add Selenium gem
Add Rack::Reloader
Setup Capybara for tests
Create test for routing to index page
Create template and directory for views
Add render method to display templates
Refactor index page to use Haml
Add Haml::Engine call to render Haml templates
Change extension of index page
Fix page title
Write test to check for routing of '/books'