Added JOSS paper badge and Citation in README

README.md

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+[![DOI](https://joss.theoj.org/papers/10.21105/joss.05388/status.svg)](https://doi.org/10.21105/joss.05388)
 
 **NOMAD** is a web-based research data management software for materials science.
 You find the official project homepage and documentation here [https://nomad-lab.eu](https://nomad-lab.eu).
@@ -35,6 +36,18 @@ For a general project overview visit the official project page [https://nomad-la
 - [install and use NOMAD as Python package (to use our APIs or parsers)](https://nomad-lab.eu/prod/v1/docs/pythonlib.html)
 - [install NOMAD Oasis](https://nomad-lab.eu/prod/v1/docs/oasis.html)
 
+Your current citation section is clear and provides both a human-readable citation and a BibTeX entry, which is great for accessibility and ease of use for different people. However, there are a few minor adjustments and improvements that could be made for clarity and professionalism. Here's a revised version:
+
+## Citing NOMAD
+
+If you use this software in your research, for data sharing, or in your lab, we encourage you to cite the following [paper](https://doi.org/10.21105/joss.05388).
+
+```
+Scheidgen et al., (2023). NOMAD: A distributed web-based platform for managing materials science research data. Journal of Open Source Software, 8(90), 5388, https://doi.org/10.21105/joss.05388
+```
+
+For citation in academic works, you can use this [BibTeX file](docs/assets/joss_paper.bib).
+
 ## Change log
 
 Omitted versions are plain bugfix releases with only minor changes and fixes. The

docs/assets/joss_paper.bib

+
+@article{Scheidgen2023,
+  author    = {Scheidgen, Markus and Himanen, Lauri and Ladines, Alvin Noe and Sikter, David and Nakhaee, Mohammad and Fekete, Ádám and Chang, Theodore and Golparvar, Amir and Márquez, José A. and Brockhauser, Sandor and Brückner, Sebastian and Ghiringhelli, Luca M. and Dietrich, Felix and Lehmberg, Daniel and Denell, Thea and Albino, Andrea and Näsström, Hampus and Shabih, Sherjeel and Dobener, Florian and Kühbach, Markus and Mozumder, Rubel and Rudzinski, Joseph F. and Daelman, Nathan and Pizarro, José M. and Kuban, Martin and Salazar, Cuauhtemoc and Ondračka, Pavel and Bungartz, Hans-Joachim and Draxl, Claudia},
+  title     = {NOMAD: A distributed web-based platform for managing materials science research data},
+  journal   = {Journal of Open Source Software},
+  volume    = {8},
+  number    = {90},
+  pages     = {5388},
+  year      = {2023},
+  publisher = {The Open Journal},
+  doi       = {10.21105/joss.05388},
+  url       = {https://doi.org/10.21105/joss.05388}
+}