Link to ArtworkResource and Scramble demo in README

Author: luismtorresv

README.md

@@ -105,6 +105,14 @@ automatically generated by [Scramble][scramble].
 
 ![Ars Longa API documentation.](.docs/screenshots/ArsLonga-screenshot-docs_api.png)
 
+> [!TIP]
+>
+> See [`ArtworkResource`](app/Http/Resources/ArtworkResource.php) for an example
+> on how to document the response attributes of your API endpoint. If you want
+> to see more, check out the [official Scramble demo][scramble-demo].
+
+[scramble-demo]: <https://github.com/dedoc/demo-scramble> "dedoc/demo-scramble: A project for demonstrating Scramble automated API documentation."
+
 ## Authors
 
 1. Jerónimo Acosta