fix formatting

Author: MatanBobi

docs/react-testing-library/example-intro.mdx

@@ -65,12 +65,14 @@ test('loads and displays greeting', async () => {
 
 See the following sections for a detailed breakdown of the test
 
-:::note We recommend using the
+:::note 
+We recommend using the
 [Mock Service Worker (MSW)](https://github.com/mswjs/msw) library to
 declaratively mock API communication in your tests instead of stubbing
 `window.fetch`, or relying on third-party adapters.
 
-MSW requires Node.js 18 or later. :::
+MSW requires Node.js 18 or later. 
+:::
 
 ```jsx title="__tests__/fetch.test.jsx"
 import React from 'react'