Update the readme to point to a demo and the paper

README.md

@@ -3,4 +3,21 @@ license: apache-2.0
 base_model:
 - arcinstitute/evo2_7b_base
 ---
-Lightweight exon/intron classifier built on Evo-2 embeddings.
+Lightweight exon/intron classifier built on Evo-2 embeddings.
+
+A demo notebook for using the classifier can be found here: https://github.com/ArcInstitute/evo2/blob/main/notebooks/exon_classifier/exon_classifier.ipynb.
+
+A description of the methods for training the classifier can be found in our preprint:
+```
+@article {brixi2025genome,
+	author = {Brixi, Garyk and Durrant, Matthew G and Ku, Jerome and Poli, Michael and Brockman, Greg and Chang, Daniel and Gonzalez, Gabriel A and King, Samuel H and Li, David B and Merchant, Aditi T and Naghipourfar, Mohsen and Nguyen, Eric and Ricci-Tam, Chiara and Romero, David W and Sun, Gwanggyu and Taghibakshi, Ali and Vorontsov, Anton and Yang, Brandon and Deng, Myra and Gorton, Liv and Nguyen, Nam and Wang, Nicholas K and Adams, Etowah and Baccus, Stephen A and Dillmann, Steven and Ermon, Stefano and Guo, Daniel and Ilango, Rajesh and Janik, Ken and Lu, Amy X and Mehta, Reshma and Mofrad, Mohammad R.K. and Ng, Madelena Y and Pannu, Jaspreet and Re, Christopher and Schmok, Jonathan C and St. John, John and Sullivan, Jeremy and Zhu, Kevin and Zynda, Greg and Balsam, Daniel and Collison, Patrick and Costa, Anthony B. and Hernandez-Boussard, Tina and Ho, Eric and Liu, Ming-Yu and McGrath, Tom and Powell, Kimberly and Burke, Dave P. and Goodarzi, Hani and Hsu, Patrick D and Hie, Brian},
+	title = {Genome modeling and design across all domains of life with Evo 2},
+	elocation-id = {2025.02.18.638918},
+	year = {2025},
+	doi = {10.1101/2025.02.18.638918},
+	publisher = {Cold Spring Harbor Laboratory},
+	URL = {https://www.biorxiv.org/content/early/2025/02/21/2025.02.18.638918},
+	eprint = {https://www.biorxiv.org/content/early/2025/02/21/2025.02.18.638918.full.pdf},
+	journal = {bioRxiv}
+}
+```