message: add route option example
diff: @@ -396,8 +396,8 @@ app.start(document.body, state, view);
  },
  {
  - name: 'Routing',
  - code: `// Routing to Components Using Events
  + name: 'Routing (component event)',
  + code: `// Routing (component event)
  class Home extends Component {
  view = () => <div>Home</div>;
  update = {'#, #home': state => state };
  @@ -414,12 +414,47 @@ class About extends Component {
  }
  const App = () => <>
  - <div id="menus"><a href="#home">Home</a> | <a href="#contact">Contact</a> | <a href="#about">About</a></div>
  + <div id="menus">
  + <a href="#home">Home</a>{' | '}
  + <a href="#contact">Contact</a>{' | '}
  + <a href="#about">About</a></div>
  <div id="pages"></div>
  </>
  app.render(document.body, <App />);
  [About, Contact, Home].map(C => new C().start('pages'));
  +`
  + },
  +
  + {
  + name: 'Routing (mount options)',
  + code: `// Routing (mount options)
  +class Home extends Component {
  + view = () => <div>Home</div>;
  +}
  +
  +class Contact extends Component {
  + view = () => <div>Contact</div>;
  +}
  +
  +class About extends Component {
  + view = () => <div>About</div>;
  +}
  +
  +const App = () => <>
  + <div id="menus">
  + <a href="#home">Home</a>{' | '}
  + <a href="#contact">Contact</a>{' | '}
  + <a href="#about">About</a></div>
  + <div id="pages"></div>
  +</>
  +
  +app.render(document.body, <App />);
  +[
  + [About, '#about'],
  + [Contact, '#contact'],
  + [Home, '#, #home'],
  +].map(([C, route]) => new C().start('pages', {route}));
  `
  }
  ];
  