remove doc comment in Cloudflare get started telling people to use the app router instead of the pages one (#55)

Author: dario-piotrowicz

pages/cloudflare/index.mdx

@@ -51,7 +51,7 @@ We will update the list as we progress towards releasing 1.0.
 - [x] [Server-Side Rendering (SSR)](https://nextjs.org/docs/app/building-your-application/rendering/server-components)
 - [x] [Middleware](https://nextjs.org/docs/app/building-your-application/routing/middleware)
 - [x] [Image optimization](https://nextjs.org/docs/app/building-your-application/optimizing/images) (you can integrate Cloudflare Images with Next.js by following [this guide](https://developers.cloudflare.com/images/transform-images/integrate-with-frameworks/))
-- [ ] [Pages Router](https://nextjs.org/docs/pages) (you should use the App Router instead, which was introduced in Next.js 13)
+- [ ] [Pages Router](https://nextjs.org/docs/pages)
 - [ ] [Incremental Static Regeneration (ISR)](https://nextjs.org/docs/app/building-your-application/data-fetching/incremental-static-regeneration)
 - [ ] [Partial Prerendering (PPR)](https://nextjs.org/docs/app/building-your-application/rendering/partial-prerendering)
 - [ ] [Support for after](https://nextjs.org/blog/next-15-rc#executing-code-after-a-response-with-nextafter-experimental)