Update README.md

Author: Zheoni

README.md

@@ -4,17 +4,45 @@ A [Simon Game](https://en.wikipedia.org/wiki/Simon_(game)) implementation
 for the [Raspberry Pi Pico](https://www.raspberrypi.org/products/raspberry-pi-pico/).
 
 ## Features
+
 - Includes 3 games:
-    - The classic simon game.
-    - *Catch me!*, where lights start blinking and the player need to follow
+  - The classic simon game.
+  - *Catch me!*, where lights start blinking and the player need to follow
     them without falling behind (with a margin).
-    - TBD.
+  - *Quick draw*, multiplayer, when the lights turn on, the first one to hit
+    the button wins.
 - Settings for the games where you can choose:
-    - from 3 leves of difficulty,
-    - playing only with lights, only with sound or with both.
+  - from 3 leves of difficulty,
+  - playing only with lights, only with sound or with both.
+
+## How does the menu works
+
+- Red button: Simon
+- Blue button: *Catch me!*
+- Yellow button: *Quick draw*
+- Green button: Settings
+  - Red: Difficulty
+    - Red: easy
+    - Blue: medium
+    - Yellow: hard
+    - Green: back
+  - Blue: Sound/Leds
+    - Red: both
+    - Blue: only Leds
+    - Yellow: only sound
+    - Green: back
+  - Yellow/Green: back
 
 ## To compile
-There is a `CMakeLists.txt` file inside the `src` directory. You should also have [set up the pico C SDK](https://datasheets.raspberrypi.org/pico/getting-started-with-pico.pdf).
+
+There is a `CMakeLists.txt` file to build the project. You should also have [set up the pico C SDK](https://datasheets.raspberrypi.org/pico/getting-started-with-pico.pdf) and CMake installed.
+
+```sh
+mkdir build
+cd build
+cmake ..
+make
+```
 
 ## Circuit
 
@@ -27,7 +55,10 @@ caught some noise when using PWM to control the LEDs.
 
 The buttons are pulled down by the pico.
 
+This project is licensed under the terms of the MIT license.
 
+## Links
 
-
-This project is licensed under the terms of the MIT license.
+- `pioasm` code for the button debounce. This project had a great idea on how to do this. [https://github.com/GitJer/Button-debouncer](https://github.com/GitJer/Button-debouncer)
+- The Pico SDK [https://github.com/raspberrypi/pico-sdk](https://github.com/raspberrypi/pico-sdk)
+- Micropython implementation for the pico. I used this to understand how the SDK works in a real environment. [https://github.com/raspberrypi/micropython](https://github.com/raspberrypi/micropython)