The Bootstrap material starts in Chapter 5 (http://ruby.railstutorial.org/chapters/filling-in-the-layout?version=3.2#top http://ruby.railstutorial.org/chapters/

The Bootstrap material starts in Chapter 5 (http://ruby.railstutorial.org/chapters/filling-in-the-layout?version=3.2#top http://ruby.railstutorial.org/chapters/filling-in-the-layout...).