Add submission # 6705

#6705

Author: ArduinoBot

registry.txt

@@ -8230,3 +8230,4 @@ https://github.com/RobTillaart/I2C_CAT24M01.git|Contributed|I2C_CAT24M01
 https://github.com/Nezaemmy/Neza74HC595.git|Contributed|Neza74HC595
 https://github.com/gavinlyonsrepo/BMP280_LTSM.git|Contributed|BMP280_LTSM
 https://github.com/Nezaemmy/Neza74HC165.git|Contributed|Neza74HC165
+https://github.com/AmissDrake/MDLib.git|Contributed|MDLib