M5Unit-TUBE (#6613)

Author: Tinyu-Zhao

repositories.txt

@@ -24,6 +24,7 @@ https://github.com/GalaidaMaxim/Delayer
 https://github.com/danel32/Arduino-Library-for-MAX7300
 https://github.com/TheBlackSwitch/PS2Keyboard
 https://github.com/aiplayuser/esp8266easylib.git
+https://github.com/m5stack/M5Unit-TUBE/
 https://github.com/aiplayuser/esp32easylib.git
 https://github.com/boby15000/Tempo.git
 https://github.com/Circuit-Digest/GeoLinkerLite