docs: link public patched Docker image

README.md

@@ -31,6 +31,18 @@ whatsapp‑web.js is a powerful [Node.js][nodejs] library that lets you interact
 - [Discord Server][discord]
 - [npm][npm]
 
+## Patched distribution
+
+This Forgejo fork contains a compatibility patch for WhatsApp Web message
+IDs that expose the serialized value as `$1` instead of `_serialized`.
+
+- Source repository: [eddy/whatsapp-web.js](https://git.eddydevink.nl/eddy/whatsapp-web.js)
+- API wrapper and public image: [eddy/wwebjs-api](https://git.eddydevink.nl/eddy/wwebjs-api)
+- Docker image: `git.eddydevink.nl/eddy/wwebjs-api:1.34.7-serialized-id-2dd7653`
+
+The Docker image packages this library as a pinned archive. It is an
+unofficial compatibility build, not an upstream `whatsapp-web.js` release.
+
 ## Installation
 
 **Node.js `v18.0.0` or higher, is required.**