Update README.md

README.md

@@ -16,12 +16,10 @@ Paper abstract:
 - **Preprint:** [arXiv:2505.13755](https://arxiv.org/abs/2505.13755)
 - **Repository:** https://github.com/abao1999/panda
 
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+![skew system parameter perturbations](skew_system_param_perts.pdf)
 
 ## Citation
 
-<!-- If there is a paper or blog post introducing the model, the APA and Bibtex information for that should go in this section. -->
-
 **BibTeX:**
 
 If you find our work valuable for your research, please cite us: