title: How to specify layout in nanoc?
body: <p>In Jekyll, we write layout structure in a HTML file and put it in <code>_layout</code> folder. Say, the <code>_layout</code> folder has file named <code>welcome.html</code>, for a webpage to use it, we simply specify as follows:</p>
  
  <pre class="lang-none prettyprint-override"><code>---
  title: Awesome webpage
  layout: welcome
  ---
  </code></pre>
  
  <p>How to do the same when using nanoc? I thought it works the same way, but unfortunately, it seems like not picking up the welcome template. It is just picking up the default.html template.</p>
  
  <p>Is it because of the file called <code>rule</code> which has the following lines?</p>
  
  <pre><code>compile '/' do
    filter :erb
    layout 'default'
  end
  </code></pre>
  
  <p>I want only one specific file to pick up the <code>welcome</code> layout. How to do it?</p>