Update javascript.nextjs.mdx (#8327)

Fixed typo

src/platform-includes/getting-started-primer/javascript.nextjs.mdx

@@ -7,7 +7,7 @@ Features:
 - [Breadcrumbs](/platforms/javascript/enriching-events/breadcrumbs/) created for outgoing HTTP request with XHR and Fetch, and console logs
 - [Release health](/product/releases/health/) for tracking crash-free users and sessions
 - Automatic [Performance Monitoring](/product/performance/) for both the client and server
-- Errors and Performance support for [Middleware](https://vercel.com/docs/concepts/functions/edge-middleware) and [Edge routes](https://vercel.com/docs/concepts/functions/edge-functions) in Vercel's edge runtime. Due to complexities with the runtime, some features of errors like stack traces may not not be as expected. Requires <code>sentry.edge.config.js</code>, more info [here](/platforms/javascript/guides/nextjs/manual-setup/#create-initialization-config-files)
+- Errors and Performance support for [Middleware](https://vercel.com/docs/concepts/functions/edge-middleware) and [Edge routes](https://vercel.com/docs/concepts/functions/edge-functions) in Vercel's edge runtime. Due to complexities with the runtime, some features of errors like stack traces may not be as expected. Requires <code>sentry.edge.config.js</code>, more info [here](/platforms/javascript/guides/nextjs/manual-setup/#create-initialization-config-files)
 
 <Note>