added hints, updated formatting (#33488)

guide/english/certifications/front-end-libraries/react/create-a-complex-jsx-element/index.md

@@ -1,9 +1,13 @@
 ---
 title: Create a Complex JSX Element
 ---
-## Create a Complex JSX Element
+# Create a Complex JSX Element
 
-Hint: 
+## Hint
+- nested JSX must return a single, top level element
+- Ensure your solution has a parent `div` containing an `h1`, a `p`, and an unordered list (`ul`) that contains three `li` items
+
+## Solution  
 
 ```html
 const JSX = <div>