fix doc-manaual.html dom tag

Author: Heanes

doc/manual.html

@@ -330,7 +330,7 @@ <h2>Configuration</h2>
           <dt><code><strong>moveOnDrag</strong>: bool</code></dt>
           <dd>When the mouse even drags content around inside the
           editor, this controls whether it is copied (false) or moved
-          (true).</dt>
+          (true).</dd>
         </dl>
       </dd>