Update repositories.txt (#6660)

Author: ennio64

repositories.txt

@@ -8145,7 +8145,7 @@ https://github.com/microbotsio/CodeCell-MicroLink
 https://github.com/eyr1n/RP2040PIO_CAN
 https://github.com/Arduino15/A15RGB
 https://github.com/eyr1n/esp32-ps3
-
+https://github.com/ennio64/CL57R-Stepper-Driver-Arduino-Library
 https://github.com/belem2050/LightTaskScheduler
 https://github.com/eyr1n/ESP32_TWAI
 https://github.com/PelicanHu/ESPCPUTemp