Adding reference publication in readme and codemeta

Fixes #103 (closed)

README.md

@@ -89,7 +89,21 @@ See [LICENSE](LICENSE)
 
 ## Cite
 
-To cite this library, use the cite section in [the Zenodo page](https://zenodo.org/record/5592584#.YiALJRPMI-Q) (right
-column, below the `Versions` section).
+To cite this library, please cite our ADASS proceedings:
+
+```
+@misc{https://doi.org/10.48550/arxiv.2212.00499,
+  doi = {10.48550/ARXIV.2212.00499},
+  url = {https://arxiv.org/abs/2212.00499},
+  author = {Vuillaume, Thomas and Garcia, Enrique and Tacke, Christian and Gal, Tamas},
+  keywords = {Instrumentation and Methods for Astrophysics (astro-ph.IM), FOS: Physical sciences, FOS: Physical sciences},
+  title = {The eOSSR library},
+  publisher = {arXiv},
+  year = {2022},
+  copyright = {arXiv.org perpetual, non-exclusive license}
+}
+```
+
+If you used the library in a workflow, please cite the version used as well, using the cite section in [the Zenodo page](https://zenodo.org/record/5592584#.YiALJRPMI-Q) (right column, below the `Versions` section).