Update index.md

Author: tomoya723

1209/7230/index.md

@@ -5,6 +5,6 @@ owner: tomoya723
 license: MIT
 site: https://github.com/tomoya723/FULLMONI-WIDE
 firmware: https://github.com/tomoya723/FULLMONI-WIDE/tree/main/Firmware
-hardware: https://github.com/tomoya723/FULLMONI-WIDE/tree/main/PCB
+hardware: https://github.com/tomoya723/FULLMONI-WIDE/tree/main/Hardware
 ---
 Digital Claster for MoTeC.