docs: add tip for using fireEvent in Basic Example

Author: CamargoCode

README.md

@@ -165,7 +165,7 @@ afterAll(() => {
 ## Examples
 
 ### Basic Example
-
+> **Tip:** This example shows how to use `fireEvent` to interact with elements.
 ```jsx
 // hidden-message.js
 import * as React from 'react'