application.hbs

<div class="container">
  <div class="row">
    <div class="col-sm-4">
      <h2 id='title'>Document Editor</h2>
    </div>
    <div class="col-sm-8">
      <ul class="nav nav-pills pull-right">
        <li>{{#link-to 'index'}}Home{{/link-to}}</li>
        <li>{{#link-to 'about'}}About{{/link-to}}</li>
        <li>{{#link-to 'documents'}}Documents{{/link-to}}</li>
      </ul>
    </div>
  </div>
</div>

{{outlet}}