Fix usb-cdc readme

examples/raspberrypi/rp2xxx/README.md

@@ -21,6 +21,8 @@ examples will eventually be able to run on either chip with no changes due to th
   Routes the SYS clock divided by 1000 out to GPIO25.
 - [watchdog timer](src/watchdog_timer.zig) on the [Pico](https://www.raspberrypi.com/products/raspberry-pi-pico/) or [Pico2](https://www.raspberrypi.com/products/raspberry-pi-pico-2/) boards  
   Enables a watchdog timer for 1 second, and demonstrates the chip resetting when the watchdog timer elapses
+- [usb device](src/usb_cdc.zig) on the [Pico](https://www.raspberrypi.com/products/raspberry-pi-pico/) board  
+  A really basic example for a raw USB device. You can use the Python 3 script [`scripts/usb_device_loopback.py`](scripts/usb_device_loopback.py) to test the USB device.
 
 ### RP2040 Only
 
@@ -42,8 +44,6 @@ examples will eventually be able to run on either chip with no changes due to th
   Showcases how to use the PIO to emit a basic square wave.
 - [uart](src/rp2040_only/uart.zig) on the [Pico](https://www.raspberrypi.com/products/raspberry-pi-pico/) board  
   Showcases how to use the UART together with `std.log`.
-- [usb device](src/usb_cdc.zig) on the [Pico](https://www.raspberrypi.com/products/raspberry-pi-pico/) board  
-  A really basic example for a raw USB device. You can use the Python 3 script [`scripts/usb_device_loopback.py`](scripts/usb_device_loopback.py) to test the USB device.
 - [usb hid](src/rp2040_only/usb_hid.zig) on the [Pico](https://www.raspberrypi.com/products/raspberry-pi-pico/) board  
   A really basic example how to implement a USB HID device. You can use the Python 3 script [`scripts/hid_test.py`](scripts/hid_test.py) to test the HID device.
 - [ws2812](src/ws2812.zig) on the [Pico](https://www.raspberrypi.com/products/raspberry-pi-pico/) board