update examples readme

micropython/examples/galactic_unicorn/README.md

@@ -2,7 +2,7 @@
 
 Galactic Unicorn offers 53x11 bright RGB LEDs driven by Pico W's PIO in addition to a 1W amplifier + speaker, a collection of system and user buttons, and two Qw/ST connectors for adding external sensors and devices. Woha!
 
-- link:[Galactic Unicorn store page](https://shop.pimoroni.com/products/galactic-unicorn)
+- :link: [Galactic Unicorn store page](https://shop.pimoroni.com/products/galactic-unicorn)
 
 Galactic Unicorn ships with MicroPython firmware pre-loaded, but you can download the most recent version at the link below (you'll want the  `galactic-unicorn` image).
 
@@ -21,12 +21,13 @@ Galactic Unicorn ships with MicroPython firmware pre-loaded, but you can downloa
   - [Rainbow](#rainbow)
   - [Scrolling Text](#scrolling-text)
 - [Wireless Examples](#wireless-examples)
-  - [Cheerlights Over Time](#cheerlights-over-time)
+  - [Cheerlights History](#cheerlights-history)
   - [Galactic Paint](#galactic-paint)
+- [Factory reset](#factory-reset)
 
 ## Galactic Unicorn and PicoGraphics
 
-The easiest way to start displaying stuff on Galactic Unicorn is using our Galactic Unicorn module (which contains a bunch of helpful functions for interacting with the buttons, adjusting brightness and suchlike) and our PicoGraphics library, which is chock full of useful functions for drawing on the LED matrix.
+The easiest way to start displaying cool stuff on Galactic Unicorn is using our Galactic Unicorn module (which contains a bunch of helpful functions for interacting with the buttons, adjusting brightness and suchlike) and our PicoGraphics library, which is chock full of useful functions for drawing on the LED matrix.
 
 - [Galactic Unicorn function reference](../../modules/picographics/README.md)
 - [PicoGraphics function reference](../../modules/galactic_unicorn/README.md)
@@ -43,59 +44,59 @@ Clock example with (optional) NTP synchronization.
 
 [eighties_super_computer.py](eighties_super_computer.py)
 
-todo
+Random LEDs blink on and off mimicing the look of a movie super computer doing its work in the eighties.
 
 ### Feature Test
 
 [feature_test.py](feature_test.py)
 
-todo
+Displays some text, gradients and colours and demonstrates button use.
 
 ### Feature Test With Audio
 
 [feature_test_with_audio.py](feature_test_with_audio.py)
 
-todo
+Displays some text, gradients and colours and demonstrates button use. Also demonstrates some of the audio / synth features.
 
 ### Fire Effect
 
 [fire_effect.py](fire_effect.py)
 
-todo
+A pretty, procedural fire effect. Switch `landscape = False` for vertical fire!
 
 ### Lava Lamp
 
 [lava_lamp.py](lava_lamp.py)
 
-todo
+A 70s-tastic, procedural rainbow lava lamp.
 
 ### Nostalgia Prompt
 
 [nostalgia_prompt.py](nostalgia_prompt.py)
 
-todo
+A collection of copies of classic terminal styles including C64, MS-DOS, Spectrum, and more. Images and text are drawn pixel by pixel from a pattern of Os and Xs.
 
 ### Rainbow
 
 [rainbow.py](rainbow.py)
 
-Some good old fashioned rainbows!
+Some good old fashioned rainbows! You can adjust the cycling speed with VOL + and - and the brightness with LUX + and -.
 
 ### Scrolling Text
 
 [scrolling_text.py](scrolling_text.py)
 
-todo
+Display scrolling wisdom, quotes or greetz.
 
 ## Wireless Examples
 
-### Cheerlights Over Time
+### Cheerlights History
 
-[cheerlights_over_time.py](cheerlights_over_time.py)
+[cheerlights_history.py](cheerlights_history.py)
 
-todo
+Updates one pixel every five minutes to display the most recent #Cheerlights colour. Discover the most popular colours over time, or use it as an avant garde (but colourful) 53 hour clock! Find out more about the Cheerlights API at https://cheerlights.com/
 
-This wireless example needs `network_manager.py` and `WIFI_CONFIG.py` from the `common` directory to be saved to your Pico W. Open up `WIFI_CONFIG.py` in Thonny to add your wifi details (and save it when you're done).
+This example needs `network_manager.py` and `WIFI_CONFIG.py` (from the `common` directory) to be saved to your Pico W. Open up `WIFI_CONFIG.py` in Thonny to add your wifi details (and save it when you're done).
 
 - [micropython/examples/common](../../examples/common)
 
@@ -103,6 +104,13 @@ This wireless example needs `network_manager.py` and `WIFI_CONFIG.py` from the `
 
 [galactic_paint](galactic_paint)
 
-todo
+Draw on your Galactic Unicorn from another device in real time!
 
+- [Galactic Paint readme](galactic_paint/README.md)
+
+## Factory reset
+
+[launch](launch)
+
+If you want to get the demo reel back, copy the contents of this `launch` folder to your Pico W.