Update README.md

Author: NDevTK

README.md

@@ -20,3 +20,5 @@ Features:
 - Option to pause media when muted and not visible (Also supports tab mute, Not PiP due to lack of API on firefox)
 - Option to mute a tab when media is paused (Allows media switching without tab change using the unmute button)
 - Ignore other tabs
+- Mark tab for autopause usage
+- No permission mode