feat(docs): add MkDocs documentation setup with Docker support and restructure markdown files

Signed-off-by: Dominik Willner <th33xitus@gmail.com>

docs/development/changelog.md

@@ -276,7 +276,7 @@ Each service gets its corresponding instance added to the service filename.
 
 * The user can now choose to install Klipper as a systemd service.
 
-* The Shell Command extension and `shell_command.py` got renamed to G-Code Shell Command extension and `gcode_shell_command.py`. In case the [pending PR](https://github.com/KevinOConnor/klipper/pull/2173) will be merged in the future, this was an early attempt to dodge possible incompatibilities. The [G-Code Shell Command docs](gcode_shell_command.md) has been updated accordingly.
+* The Shell Command extension and `shell_command.py` got renamed to G-Code Shell Command extension and `gcode_shell_command.py`. In case the [pending PR](https://github.com/KevinOConnor/klipper/pull/2173) will be merged in the future, this was an early attempt to dodge possible incompatibilities. The [G-Code Shell Command docs](extensions/gcode-shell-command) has been updated accordingly.
 
 * The way how KIAUH interacts and writes to the users printer.cfg got changed. Usually KIAUH wrote everything directly into the printer.cfg. The way it will work from now on is, that a new file called `kiauh.cfg` will be created if there is something that needs to be written to the printer.cfg and everything gets written to `kiauh.cfg` instead. The only thing which then gets written to the users printer.cfg is `[include kiauh.cfg]`. This line will be located at the very top of the existing printer.cfg with a little comment as a note. The user can then decide to either keep the `kiauh.cfg` or take its content, places it into the printer.cfg directly and remove the `[include kiauh.cfg]`.
 

docs/index.md

@@ -0,0 +1,20 @@
+<h1 align="center">
+  KIAUH - Klipper Installation And Update Helper
+</h1>
+
+<p align="center">
+  <img src="assets/logo-large.png" alt="KIAUH logo">
+</p>
+<p align="center">
+  A handy installation script that makes installing Klipper (and more) a breeze!
+</p>
+
+
+## Features
+
+- Easy installation of Klipper and related components
+- Support for multiple instances
+- Extension system for additional functionality
+- Configuration management
+- And more!
+