update installation instructions

docs/src/index.md

@@ -18,17 +18,16 @@ This package is part of Julia Kite Power Tools, which consist of the following p
 If you want to run simulations and see the results in 3D, please install the meta package  [KiteSimulators](https://github.com/aenarete/KiteSimulators.jl) which contains all other packages. If you are not interested in 3D visualization or control you can just install this package. When you have installed the package KiteSimulators, use the command `using KiteSimulators` instead of `using KiteModels` when this is mentioned in the documentation.
 
 ## Installation
-Install [Julia 1.10](https://ufechner7.github.io/2024/08/09/installing-julia-with-juliaup.html) or later, if you haven't already. 
+Install [Julia 1.10](https://ufechner7.github.io/2024/08/09/installing-julia-with-juliaup.html) or later, if you haven't already. On Linux, make sure that Python3 and Matplotlib are installed:
+```
+sudo apt install python3-matplotlib
+```
 Before installing this software it is suggested to create a new project, for example like this:
 ```bash
 mkdir test
 cd test
 julia --project="."
 ```
-On Linux, make sure that Python3 and Matplotlib are installed:
-```
-sudo apt install python3-matplotlib
-```
 Then add KiteModels from  Julia's package manager, by typing:
 ```julia
 using Pkg