ci: update integration docs (#3595)

Co-authored-by: delucis <[email protected]>

src/content/docs/en/guides/integrations-guide/cloudflare.mdx

@@ -69,7 +69,11 @@ Cloudflare Pages has 2 different modes for deploying functions, `advanced` mode
 
 For most projects the adapter default of `advanced` will be sufficient; the `dist` folder will contain your compiled project. Switching to directory mode allows you to use [pages plugins](https://developers.cloudflare.com/pages/platform/functions/plugins/) such as [Sentry](https://developers.cloudflare.com/pages/platform/functions/plugins/sentry/) or write custom code to enable logging.
 
-In directory mode the adapter will compile the client side part of your app the same way, but moves the worker script into a `functions` folder in the project root. The adapter will only ever place a `[[path]].js` in that folder, allowing you to add additional plugins and pages middleware which can be checked into version control. Cloudflare documentation contains more information about [writing custom functions](https://developers.cloudflare.com/pages/platform/functions/).
+In directory mode, the adapter will compile the client side part of your app the same way by default, but moves the worker script into a `functions` folder in the project root. In this case, the adapter will only ever place a `[[path]].js` in that folder, allowing you to add additional plugins and pages middleware which can be checked into version control.
+
+With the build configuration `split: true`, the adapter instead compiles a separate bundle for each page. This option requires some manual maintenance of the `functions` folder. Files emitted by Astro will overwrite existing `functions` files with identical names, so you must choose unique file names for each file you manually add. Additionally, the adapter will never empty the `functions` folder of outdated files, so you must clean up the folder manually when you remove pages.
+
+Note that this adapter does not support using [Cloudflare Pages Middleware](https://developers.cloudflare.com/pages/platform/functions/middleware/). Astro will bundle the [Astro middleware](/en/guides/middleware/) into each page.
 
 ```ts
 // directory mode

src/content/docs/en/guides/integrations-guide/sitemap.mdx

@@ -102,6 +102,8 @@ After verifying that the sitemaps are built, you can add them to your site's `<h
 </head>
 ```
 
+
+
 ```diff ins={4} title="public/robots.txt"
 User-agent: *
 Allow: /

src/content/docs/en/guides/integrations-guide/vercel.mdx

@@ -231,6 +231,24 @@ export default defineConfig({
 });
 ```
 
+### Per-page functions
+
+The Vercel adapter builds to a single function by default. Astro 2.7 added support for splitting your build into separate entry points per page. If you use this configuration the Vercel adapter will generate a separate function for each page. This can help reduce the size of each function so they are only bundling code used on that page.
+
+```js
+// astro.config.mjs
+import { defineConfig } from 'astro/config';
+import vercel from '@astrojs/vercel/serverless';
+
+export default defineConfig({
+  output: 'server',
+  adapter: vercel(),
+  build: {
+    split: true,
+  },
+});
+```
+
 ### Vercel Middleware
 
 You can use Vercel middleware to intercept a request and redirect before sending a response. Vercel middleware can run for Edge, SSR, and Static deployments. You don't need to install `@vercel/edge` to write middleware, but you do need to install it to use features such as geolocation. For more information see [Vercel’s middleware documentation](https://vercel.com/docs/concepts/functions/edge-middleware).