Update README.md

Author: ufechner7

README.md

@@ -2,6 +2,13 @@
 
 [![Build Status](https://github.com/OpenSourceAWE/SimpleKiteControllers.jl/actions/workflows/CI.yml/badge.svg?branch=main)](https://github.com/OpenSourceAWE/SimpleKiteControllers.jl/actions/workflows/CI.yml?query=branch%3Amain)
 
+## Introduction
+This package shall (in the beginning) provide two controllers:
+- a parking controller, that keeps the nose of the kite pointing into the wind and thus keeps it in a steady state airborne as long as their is sufficient wind
+- a figure of eight controller for pulling ships
+
+All controllers shall come with an auto-tuning script for tuning the controller parameters for new kites. It might be necessary to run this script for different wind speeds and to create a lookup table that adapts the controller parameters to the wind speed.
+
 ## This package provides
 - the types `ParkingController` and `ParkingControllerSettings`
 - the functions `linearize`, `calc_steering`, `navigate`