title: Using React-Router with a layout page or multiple components per page
body: <p>I am adding react router to an existing project. </p>
  
  <p>At present a model is passed in to a root component which contains a navigation component for the sub navigation and a main component.</p>
  
  <p>The examples of react router I've found only have one child component, what is the best way to have multiple child components change without repeating the layout code in both?</p>