Setup steps for bootstrap

Bootstrap_setup

1. gem ‘bootstrap-sass’
2. mv assets/stylesheets/application.css assets/stylesheets/application.css.scss
3. in application.css.scss add @import “bootstrap”;
4. in application.js -> //= require bootstrap
5. in application.html.erb:
    <%= stylesheet_link_tag 'application' %>
    <%= javascript_include_tag 'application' %>
    <%= csrf_meta_tags %>
6. Tweak variables in application.css.scss