title: wordpress simple shortcodes not rendered when using Timber plugin
body: <p>I've recently taken over dev of a Wordpress site using Timber (which I wasn't familiar with).  I'm attempting to use a new plugin and accompanying shortcode, which of course doesn't work.</p>
  
  <p>I've been researching this for a couple hours and there doesn't seem to be a simple answer.  In order to use a simple shortcode like this:</p>
  
  <p>[sp_faq category="7"]</p>
  
  <p>Do I really need to create a custom shortcode function in functions.php, add some sort of template file for it, etc?  This seems counterintuitive to Twig's making things 'simple'.</p>
  
  <p>The documentation for this is less than stellar unless I'm missing something obvious.</p>