fix doc link

README.md

@@ -40,9 +40,9 @@ built by default. It is up to the application linking to hidapi to choose
 the backend at link time by linking to either `libhidapi-libusb` or
 `libhidapi-hidraw`.
 
-Note that you will need to install a udev rule file with your application
+Note that you will need to install an udev rule file with your application
 for unprivileged users to be able to access HID devices with hidapi. Refer
-to the [69-hid-udev.rules](udev/69-hid-udev.rules) file in the `udev` directory
+to the [69-hid.rules](udev/69-hid.rules) file in the `udev` directory
 for an example.
 
 __Linux/hidraw__ (`linux/hid.c`):