Add submission # 7501

#7501

Author: ArduinoBot

registry.txt

@@ -8779,3 +8779,4 @@ https://github.com/7semi-solutions/7Semi_ICM20948_Arduino-Library.git|Contribute
 https://github.com/7semi-solutions/7Semi_SHT4x_Analog_Arduino-Library.git|Contributed|7Semi_SHT4x_analog_Arduino-Library
 https://github.com/marinpopa/AsyncOTAManager.git|Contributed|AsyncOTAManager
 https://github.com/jo3-tech/MT-dh-serial-kinematics.git|Contributed|MT-dh-serial-kinematics
+https://github.com/mussacharles60/StepperShiftRegister74HC595.git|Contributed|StepperShiftRegister74HC595