docs/library/neopixel: Change link to a micropython-lib reference.

Signed-off-by: Andy Piper <andypiperuk@gmail.com>

docs/library/neopixel.rst

@@ -9,9 +9,7 @@ This module provides a driver for WS2818 / NeoPixel LEDs.
 .. note:: This module is only included by default on the ESP8266, ESP32 and RP2
    ports. On STM32 / Pyboard and others, you can either install the
    ``neopixel`` package using :term:`mip`, or you can download the module
-   directly from
-   <https://raw.githubusercontent.com/micropython/micropython-lib/master/micropython/drivers/led/neopixel/neopixel.py>`_
-   and copy it to the filesystem.
+   directly from :term:`micropython-lib` and copy it to the filesystem.
 
 class NeoPixel
 --------------