Added a line in notes section

README.md

@@ -104,5 +104,6 @@ Admin routes expect the password in the `x-admin-password` header.
 
 - The admin password is sent in a header on every admin request. Run the app behind HTTPS (reverse proxy or tunnel) when exposing it publicly.
 - Entries are stored in a single JSON file, which is fine for a small friend group but not meant for large scale, any help with this is appreciated, since I can't code for shit
+- Docker not fully tested yet, so no guarantee it will work
 
 ## Enjoy! :3