5.3.2 - add routes for static pages. Rspec tests are now green
5.3.3 - add the named routes to links in header and footer partials
5.3.4 - refactoring rspec tests for static pages
5.4.1 - create Users controller using rails generate
5.4.2 - create spec for Users controller using rails generate integration_test; update user_pages_spec to pass, and update signup link in home page