Update index.html

Author: usernamehw

2-ui/1-document/04-searching-elements-dom/2-tree-info/solution.view/index.html

@@ -40,7 +40,7 @@
   </ul>
 
   <script>
-    for (let li of document.querySelector('li')) {
+    for (let li of document.querySelectorAll('li')) {
       // get the title from the text node
       let title = li.firstChild.data;