app/data/template.hbs

<!doctype html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <title>Demo: {{title}}</title>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.4/css/bootstrap.min.css">
    <style>
      body { padding-top: 70px; }
      h1 { margin-bottom: 20px; }
      h2 { margin-top: 30px; }
      .container { margin-bottom: 40px; }
      .col-sm-4 h3 { margin-top: 0; }
    </style>
  </head>
  <body>
    <div class="container">
      <nav class="navbar navbar-inverse navbar-fixed-top">
        <div class="container-fluid">
          <div class="navbar-header">
            <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar-collapse">
              <span class="sr-only">Toggle navigation</span>
              <span class="icon-bar"></span>
              <span class="icon-bar"></span>
              <span class="icon-bar"></span>
            </button>
            <a class="navbar-brand" href="#">{{title}}</a>
          </div>
          <div class="collapse navbar-collapse" id="navbar-collapse">
            <ul class="nav navbar-nav">
              <li class="active"><a href="#">Home</a></li>
              <li><a href="#">Link</a></li>
              <li><a href="#">Link</a></li>
            </ul>
          </div>
        </div>
      </nav>
      <h1 class="text-center">Welcome to {{title}}!</h1>
      <p class="text-center">
        <img src="http://lorempixel.com/240/240/{{image}}/4" alt="" width="240" height="240" class="img-circle">
      </p>
      <h2>About</h2>
      <p class="lead">{{about}}</p>
      <h2>Friends</h2>
      <div class="row">
        {{#each friends}}
        <div class="col-sm-4">
          <h3>{{name}}</h3>
          <p>{{description}}</p>
        </div>
        {{/each}}
      </div>
      <hr>
      <p class="text-center text-muted">Copyright (c) 2015 {{title}}</p>
    </div>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.4/js/bootstrap.min.js"></script>
  </body>
</html>