text: import './core/core.scss';
  import './navigation/links.scss';
  
  import React from 'react';
  import Book from './book/book.js';
  
  import Section from './book/section.jsx';
  React.render( <Section />, document.getElementById( 'heading-container' ) );
  
  var book = new Book();
  book.logSomething();
  