docs: updated public directory explanation (#18464)

docs/7.migration/2.configuration.md

@@ -93,6 +93,13 @@ Nuxt and Nuxt Modules are now build-time-only.
 If you are a module author, you can check out [more information about module compatibility](/docs/migration/module-authors) and [our module author guide](/docs/guide/going-further/modules).
 ::
 
+## Directory Changes
+
+The `static/` directory (for storing static assets) has been renamed to `public/`. You can either rename your `static` directory to `public`, or keep the name by setting `dir.public` in your `nuxt.config`.
+
+::ReadMore{link="/docs/guide/directory-structure/public"}
+::
+
 ## TypeScript
 
 It will be much easier to migrate your application if you use Nuxt's TypeScript integration. This does not mean you need to write your application in TypeScript, just that Nuxt will provide automatic type hints for your editor.