Adding citation, sorting badges

[AnHeuermann]

Related Issues

We have a pre-print for FMI-LS-DAE at https://arxiv.org/abs/2606.22544. We should ask people to cite it if they happen to use FMI-LS-DAE and write a paper about it.

Changes

• Adding Citation.cff. It will generate the following bib tex

  @article{Nahodovic_Towards_an_FMI_2026,
  author = {Nahodovic, Elmir and Heuermann, Andreas and Andersson, Joel A. E. and Verulkar, Adwait and Sivaramakrishnan, Srikanth and Najafi, Masoud and Langenkamp, Linus and Bertsch, Christian and Henningsson, Erik and Olsson, Hans and Bachmann, Bernhard},
  doi = {10.48550/arXiv.2606.22544},
  month = jun,
  note = {Preprint},
  title = {{Towards an FMI Layered Standard for DAE: Applications for Simulation and Optimization}},
  url = {https://arxiv.org/abs/2606.22544},
  year = {2026}
  }

• Updating README to make it simpler to find link to specification.

  

Checklist

• My employer has signed the Corporate Contributor License Agreement or the Modelica Association CLA