Update repositories.txt

Author: SooDragon

repositories.txt

@@ -2520,7 +2520,7 @@ https://github.com/gbr1/ucPack
 https://github.com/gbrd/arduino-teleinfo
 https://github.com/Geabong/ModbusRTUSlaveArduino
 https://github.com/Geekble-Maker/Geekble_MotorOrgel
-https://github.com/geekblemaker/Geekble_note2freq
+https://github.com/Geekble-Maker/Geekble_Note2Freq
 https://github.com/geekbleofficial/Geekble_LieDetector
 https://github.com/geekbleofficial/Geekble_Oscillator
 https://github.com/geeny/geenymodem