editorial: add missing </div>

accname/index.html

@@ -443,6 +443,7 @@ <h4>Computation steps</h4>
 &lt;element3 id="el3"&gt; hello &lt;/element3&gt;</code>
                 </pre>
               </aside>
+              </div>
             </li>
             <li id="comp_embedded_control"><span id="step2C"><!-- Don't link to this legacy numbered ID. --></span><em>Embedded Control:</em> Otherwise, if the <code>current node</code> is a control embedded within the label (e.g. any element directly referenced by <code>aria-labelledby</code>) for another <a class="termref">widget</a>, where the user can adjust the embedded control's value, then return the embedded control as part of the text alternative in the following manner:
               <ol>