cloudflare: mark after as supported (#85)

Author: vicb

pages/cloudflare/index.mdx

@@ -54,7 +54,7 @@ We will update the list as we progress towards releasing 1.0.
 - [x] [Partial Prerendering (PPR)](https://nextjs.org/docs/app/building-your-application/rendering/partial-prerendering)
 - [x] [Pages Router](https://nextjs.org/docs/pages)
 - [x] [Incremental Static Regeneration (ISR)](https://nextjs.org/docs/app/building-your-application/data-fetching/incremental-static-regeneration) <sup>1</sup>
-- [ ] [Support for after](https://nextjs.org/blog/next-15-rc#executing-code-after-a-response-with-nextafter-experimental)
+- [x] [Support for after](https://nextjs.org/blog/next-15-rc#executing-code-after-a-response-with-nextafter-experimental)
 - [ ] [Composable Caching](https://nextjs.org/blog/composable-caching) (`'use cache'`) is a Next.js 15 feature and not supported yet.
 
 <sup>1</sup> Only the `direct` mode is supported at the moment, and is not suitable for production.