Update README.md

make readme look a bit better

Author: MaceKuailv

README.md

@@ -16,7 +16,8 @@ https://macekuailv.github.io/seaduck/
 
 ## Citation
 
-Please cite our paper on the Journal of Open Source Software [![DOI](https://joss.theoj.org/papers/10.21105/joss.05967/status.svg)](https://doi.org/10.21105/joss.05967)
+Please cite our paper on the Journal of Open Source Software 
+[![DOI](https://joss.theoj.org/papers/10.21105/joss.05967/status.svg)](https://doi.org/10.21105/joss.05967)
 
 Jiang et al., (2023). Seaduck: A python package for Eulerian and Lagrangian interpolation on ocean datasets. Journal of Open Source Software, 8(92), 5967, https://doi.org/10.21105/joss.05967