docs: mention read works in edge environments (#14085)

* docs

* oops this should be deployments

Author: teemingc

documentation/docs/25-build-and-deploy/60-adapter-cloudflare.md

@@ -184,7 +184,11 @@ When deploying your application, the server generated by SvelteKit is bundled in
 
 ### Accessing the file system
 
-You can't use `fs` in Cloudflare Workers — you must [prerender](page-options#prerender) the routes in question.
+You can't use `fs` in Cloudflare Workers.
+
+Instead, use the [`read`]($app-server#read) function from `$app/server` to access your files. It works by fetching the file from the deployed public assets location.
+
+Alternatively, you can [prerender](page-options#prerender) the routes in question.
 
 ## Migrating from Workers Sites
 

documentation/docs/25-build-and-deploy/80-adapter-netlify.md

@@ -117,6 +117,6 @@ Additionally, you can add your own Netlify functions by creating a directory for
 
 You can't use `fs` in edge deployments.
 
-You _can_ use it in serverless deployments, but it won't work as expected, since files are not copied from your project into your deployment. Instead, use the [`read`]($app-server#read) function from `$app/server` to access your files. `read` does not work inside edge deployments (this may change in future).
+You _can_ use it in serverless deployments, but it won't work as expected, since files are not copied from your project into your deployment. Instead, use the [`read`]($app-server#read) function from `$app/server` to access your files. It also works inside edge deployments by fetching the file from the deployed public assets location.
 
 Alternatively, you can [prerender](page-options#prerender) the routes in question.

documentation/docs/25-build-and-deploy/90-adapter-vercel.md

@@ -194,6 +194,6 @@ Projects created before a certain date may default to using an older Node versio
 
 You can't use `fs` in edge functions.
 
-You _can_ use it in serverless functions, but it won't work as expected, since files are not copied from your project into your deployment. Instead, use the [`read`]($app-server#read) function from `$app/server` to access your files. `read` does not work inside routes deployed as edge functions (this may change in future).
+You _can_ use it in serverless functions, but it won't work as expected, since files are not copied from your project into your deployment. Instead, use the [`read`]($app-server#read) function from `$app/server` to access your files. It also works inside routes deployed as edge functions by fetching the file from the deployed public assets location.
 
 Alternatively, you can [prerender](page-options#prerender) the routes in question.