added prd for productisation

README.md

@@ -6,6 +6,11 @@ A small web app with a Go backend and React frontend for listing, uploading, dow
 
 - `backend`: Go HTTP API for S3 operations
 - `frontend`: React + Vite client
+- `docs`: product and implementation planning documents
+
+## Product Documentation
+
+- `docs/PRD.md`: product requirements document for the full application
 
 ## Backend configuration