Update stale link to USB-PD documentation in the wiki

Signed-off-by: Janne Grunau <j@jannau.net>

Author: jannau

README.md

@@ -2,7 +2,7 @@
 
 This is a simple tool for sending and receiving USB-PD VDM messages using a FUSB302, based on [usb-c-arduino](https://github.com/graycatlabs/usb-c-arduino).
 
-USB-PD VDM documentation is [here](https://github.com/AsahiLinux/docs/wiki/Hardware:USB-PD)
+USB-PD VDM documentation is [here](https://github.com/AsahiLinux/docs/wiki/HW:USB-PD)
 
 # Wiring
 #### Bare FUSB