Fix a problem with the docs

Author: ansman

index.html

@@ -1747,6 +1747,7 @@ <h2>Validators</h2>
               Additionally you can set the <code>allowEmpty</code> to
               <code>false</code> to disallow the following values:
             </p>
+            <ul>
               <li><code>{}</code> (empty objects)</li>
               <li><code>[]</code> (empty arrays)</li>
               <li><code>""</code> (empty string)</li>