Add submission # 4643

#4643

Author: ArduinoBot

registry.txt

@@ -7182,3 +7182,4 @@ https://github.com/YFROBOT-TM/Yfrobot-TTS-Library.git|Contributed|yfrobot_tts
 https://github.com/shunceyb/MultiMAX6675.git|Contributed|MultiMAX6675
 https://github.com/raghulrajg/OTAUpdateManager.git|Contributed|OTAUpdateManager
 https://github.com/SequentMicrosystems/Sequent-16univin-Library.git|Contributed|SM_16UNIVIN
+https://github.com/delta-G/R4_Touch.git|Contributed|R4_Touch