Update JS snippet

Co-authored-by: Francesco Gringl-Novy <[email protected]>

Author: inventarSarah

docs/platforms/javascript/guides/react/index.mdx

@@ -56,7 +56,7 @@ Sentry supports multiple versions of React Router. To learn how to configure the
 
 To import and initialize Sentry, create a file in your project's root directory, for example, `instrument.js`, and add the following code:
 
-```javascript {filename:instrument.js} {"onboardingOptions": {"performance": "3-8, 13-21, 24-30", "session-replay": "22, 33-39"}}
+```javascript {filename:instrument.js} {"onboardingOptions": {"performance": "1, 3-8, 13-21, 24-30", "session-replay": "22, 33-39"}}
 import { useEffect } from "react";
 import * as Sentry from "@sentry/react";
 import {