Add installation section to README.md

README.md

@@ -2,6 +2,16 @@
 
 The GUI library for showing the Map of the Praktikum Informatik 2
 
+## Installation
+
+### Windows
+
+Download the appropriate package from [sciebo](https://tiny.cc/pi2-view_win32) and follow the instructions in the README.
+
+### Arch Linux
+
+PI2 View is available in the [AUR](https://aur.archlinux.org/packages/pi2-view/).
+
 ## Dependencies
 
 * [Meson](https://mesonbuild.com/Getting-meson.html) (as build automation tool for this project)