Added ASUS TP200SA

Author: alesya-h

README.md

@@ -23,6 +23,7 @@ this is a standard mechanism for this functionality nowadays. Tested devices:
 - Samsung Galaxy Book Flex2 5G
 - Dell XPS 13 9310 2-in-1
 - ASUS ZenBook 15 Flip OLED UP6502ZD
+- ASUS TP200SA
 
 If it works on your device, please tell me and I'll add it to the list (or just submit a pull request yourself).
 To check if your device is supported, run `stdbuf -oL libinput debug-events|grep switch`, flip your laptop between