Add ATC_MiThermometer repository (#5242)

* Update repositories.txt

* Update repositories.txt

Author: AlexMihai1804

repositories.txt

@@ -1801,6 +1801,7 @@ https://github.com/deneyapkart/deneyap-mesafe-olcer-isik-algilayici-arduino-libr
 https://github.com/deneyapkart/deneyap-mikrofon-arduino-library
 https://github.com/deneyapkart/deneyap-oled-ekran-arduino-library
 https://github.com/deneyapkart/deneyap-renk-donusturme-arduino-library
+https://github.com/AlexMihai1804/ATC_MiThermometer-Arduino
 https://github.com/deneyapkart/deneyap-role-arduino-library
 https://github.com/deneyapkart/deneyap-servo-arduino-library
 https://github.com/deneyapkart/deneyap-sicaklik-nem-basinc-olcer-arduino-library