Doxygen documentation

- sort a bit in modules

README.md

@@ -1,6 +1,7 @@
 # JPScore
 
-[![Build Status](https://gitlab.version.fz-juelich.de/jupedsim/jpscore/badges/develop/build.svg)](https://gitlab.version.fz-juelich.de/JuPedSim/jpscore/pipelines)[![codecov.io](https://codecov.io/github/JuPedSim/jpscore/coverage.svg?branch=develop)](https://codecov.io/github/JuPedSim/jpscore?branch=develop)[![GitHub license](https://img.shields.io/badge/license-GPL-blue.svg)](https://raw.githubusercontent.com/JuPedSim/jpscore/master/LICENSE)
+[![Build Status](https://gitlab.version.fz-juelich.de/jupedsim/jpscore/badges/develop/build.svg)](https://gitlab.version.fz-juelich.de/JuPedSim/jpscore/pipelines)
+[![GitHub license](https://img.shields.io/badge/license-GPL-blue.svg)](https://raw.githubusercontent.com/JuPedSim/jpscore/master/LICENSE)
 [![DOI](https://zenodo.org/badge/36440436.svg)](https://zenodo.org/badge/latestdoi/36440436)
 
 The core module for performing the simulation (i.e. computing the trajectories). See the [online documentation](http://jupedsim.org/jpscore/)
@@ -12,7 +13,7 @@ The core module for performing the simulation (i.e. computing the trajectories).
 
 So, get the code from Gitlab and the releases from GitHub. :-)
 
-## Configuration
+## Quick start
 
 See [installation and configuration](http://jupedsim.org/jpscore/2016-11-02-quickstart.html)