Removed references to details and summary elements

Author: ericwbailey

partials/section.about.hbs

@@ -2,7 +2,7 @@
     <h2 id="title__about">About</h2>
 
     <p>
-        Accessible, semantic markup patterns for HTML content. Uses the full <a rel="external noopener" href="http://html5doctor.com/element-index/"><cite>HTML5 Doctor Element Index</cite></a>, minus the <code>&lt;details&gt;</code>, <code>&lt;summary&gt;</code>, <code>&lt;command&gt;</code>, and <code>&lt;menu&gt;</code> tags.
+        Accessible, semantic markup patterns for HTML content. Uses the full <a rel="external noopener" href="http://html5doctor.com/element-index/"><cite>HTML5 Doctor Element Index</cite></a>, minus the <code>&lt;command&gt;</code> and <code>&lt;menu&gt;</code> tags.
     </p>
     <p>
         Reference <a rel="external noopener" href="http://alistairduggin.co.uk/">Alistair Duggin</a>'s <a rel="external noopener" href="http://aduggin.github.io/accessibility-fails/"><cite>Accessibility Fails</cite></a> for common markup pattern accessibility mistakes, and <a rel="external noopener" href="http://pauljadam.com/">Paul J. Adam</a>'s <a rel="external noopener" href="http://pauljadam.com/demos/landmarks.html"><cite>WAI-ARIA Landmarks Site Navigation Structure Demo</cite></a> for semantic, accessible page landmarks.