Update docs links to /learning projects, close gpiozero#766

Author: bennuttall

docs/recipes.rst

@@ -525,7 +525,7 @@ Continue to:
 * :doc:`recipes_remote_gpio`
 
 
-.. _Push Button Stop Motion: https://www.raspberrypi.org/learning/quick-reaction-game/
-.. _Quick Reaction Game: https://www.raspberrypi.org/learning/quick-reaction-game/
-.. _GPIO Music Box: https://www.raspberrypi.org/learning/gpio-music-box/
+.. _Push Button Stop Motion: https://projects.raspberrypi.org/en/projects/push-button-stop-motion
+.. _Quick Reaction Game: https://projects.raspberrypi.org/en/projects/python-quick-reaction-game
+.. _GPIO Music Box: https://projects.raspberrypi.org/en/projects/gpio-music-box
 .. _Energenie Pi-mote: https://energenie4u.co.uk/catalogue/product/ENER002-2PI

docs/remote_gpio.rst

@@ -233,8 +233,9 @@ Or for Python 2:
 Windows
 -------
 
-First, install pip by `following this guide`_. Next, install GPIO Zero and
-pigpio with pip:
+Modern Python installers for Windows bundle pip with Python. If pip is not
+installed, you can `follow this guide`_. Next, install GPIO Zero and pigpio with
+pip:
 
 .. code-block:: doscon
 
@@ -371,5 +372,5 @@ Continue to:
 .. _abyz.me.uk: http://abyz.me.uk/rpi/pigpio/download.html
 .. _Raspberry Pi Desktop x86: https://www.raspberrypi.org/downloads/raspberry-pi-desktop/
 .. _get-pip: https://pip.pypa.io/en/stable/installing/
-.. _following this guide: https://www.raspberrypi.org/learning/using-pip-on-windows/worksheet/
+.. _follow this guide: https://projects.raspberrypi.org/en/projects/using-pip-on-windows
 .. _Sense HAT: https://www.raspberrypi.org/products/sense-hat/