Corrected location of consumer usage codes

Consumer usage codes are in Adafruit_nRF52_Arduino/cores/nRF5/Adafruit_TinyUSB_Core/tinyusb/src/class/hid/hid.h (or at least that is where I found them) - not BLEHidGeneric.h

Author: stefandz

libraries/Bluefruit52Lib/examples/Peripheral/hid_camerashutter/hid_camerashutter.ino

@@ -111,7 +111,7 @@ void loop()
       digitalWrite(LED_RED, 1);
 
       // Send the 'volume down' key press
-      // Check BLEHidGeneric.h for a list of valid consumer usage codes
+      // Check hid.h for a list of valid consumer usage codes
       blehid.consumerKeyPress(HID_USAGE_CONSUMER_VOLUME_DECREMENT);
 
       // Delay a bit between reports