Added Hatnix attribution to comments

ChatOverlay.css

@@ -1,6 +1,9 @@
 /*
- * Hatnix CSS for displaying your Owncast v.0.1.0+ chat onscreen in OBS
+ * CSS for displaying your Owncast v.0.1.0+ chat onscreen in OBS
  * to be used with [Your_Owncast_URL]/embed/chat/readonly. Modified by DeadTOm.
+ * Original code by Hatnix.
+ * https://codeberg.org/hatniX/Owncast-tweaks
+ * @hatnix@social.tchncs.de
  */
 
 /* the actual animation - only the last 15% are the fade out effect */