Merge pull request #315 from usernamehw/patch-3

Update solution.md

2-ui/1-document/04-searching-elements-dom/2-tree-info/solution.md

@@ -1,7 +1,7 @@
 Let's make a loop over `<li>`:
 
 ```js
-for (let li of document.querySelector('li')) {
+for (let li of document.querySelectorAll('li')) {
   ...
 }
 ```
@@ -9,7 +9,7 @@ for (let li of document.querySelector('li')) {
 In the loop we need to get the text inside every `li`. We can read it directly from the first child node, that is the text node:
 
 ```js
-for (let li of document.querySelector('li')) {
+for (let li of document.querySelectorAll('li')) {
   let title = li.firstChild.data;
 
   // title is the text in <li> before any other nodes