Update repositories.txt (#6602)

Author: boby15000

repositories.txt

@@ -23,6 +23,7 @@ https://github.com/danel32/Arduino-Library-for-MAX7300
 https://github.com/TheBlackSwitch/PS2Keyboard
 https://github.com/aiplayuser/esp8266easylib.git
 https://github.com/aiplayuser/esp32easylib.git
+https://github.com/boby15000/Tempo.git
 https://github.com/Circuit-Digest/GeoLinkerLite
 https://github.com/RacoonX65/LightweightIoT-Arduino-Lib
 https://github.com/RacoonX65/CalibrationLib.git