Update URL of "PID_v2"

Author: per1234

registry.txt

@@ -3701,7 +3701,7 @@ https://github.com/Seeed-Studio/Seeed_Arduino_FS.git|Contributed|Seeed Arduino F
 https://github.com/Seeed-Studio/Seeed_Arduino_SFUD.git|Contributed|Seeed Arduino SFUD
 https://github.com/Seeed-Studio/Seeed_Arduino_IR.git|Contributed|Seeed Arduino IR
 https://github.com/jhershey69/MoonStruck.git|Contributed|MoonStruck
-https://github.com/gelraen/Arduino-PID-Library.git|Contributed|PID_v2
+https://github.com/imax9000/Arduino-PID-Library.git|Contributed|PID_v2
 https://github.com/dvernier/GDXLib.git|Contributed|GDXLIb
 https://github.com/GerLech/Talking_Display.git|Contributed|Talking_Display
 https://github.com/telleropnul/BigFont01.git|Contributed|BigFont01