Add disclaimer

Signed-off-by: Martyn Ranyard <m@rtyn.berlin>

README.md

@@ -2,6 +2,8 @@
 
 Silly little twitch bot that gives prompts for songs to sing.
 
+Almost a hackday style project.  Apologies for the mess.
+
 Auto-built from my Drone CI and pushed to dockerhub. 
 [![Build Status](https://ci.martyn.berlin/api/badges/martyn/karaokards/status.svg)](https://ci.martyn.berlin/martyn/karaokards)