Merge pull request #17 from styx-api/preprint-ref

Add preprint citation

Author: nx10

src/README.md

@@ -46,13 +46,18 @@ Styx is particularly valuable when:
 
 ## Citation
 
-If Styx helps your research, please cite:
-
-```
-@software{styx,
-  author = {The Styx Contributors},
-  title = {Styx: Type-safe command-line tool bindings},
-  url = {https://github.com/styx-api/styx},
-  year = {2023}
+If you use NiWrap in your research, please consider citing:
+
+```bibtex
+@article {rupprecht2025styx,
+	author = {Rupprecht, Florian JM and Kai, Jason and Shrestha, Biraj and Giavasis, Steven and Xu, Ting and Glatard, Tristan and Milham, Michael P and Kiar, Gregory},
+	title = {Styx: A multi-language API Generator for Command-Line Tools},
+	elocation-id = {2025.07.24.666435},
+	year = {2025},
+	doi = {10.1101/2025.07.24.666435},
+	publisher = {Cold Spring Harbor Laboratory},
+	URL = {https://www.biorxiv.org/content/early/2025/07/30/2025.07.24.666435},
+	eprint = {https://www.biorxiv.org/content/early/2025/07/30/2025.07.24.666435.full.pdf},
+	journal = {bioRxiv}
 }
-```
+```