docs: update citation

README.md

@@ -83,7 +83,7 @@ This dataset was formatted by taking the test split of SCALR, splitting it in ha
 This dataset is licensed under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/).
 
 ## Citation 🔖
-If you use this dataset, please cite [MLEB](https://isaacus.com/mleb) as well.
+If you use this dataset, please cite the [Massive Legal Embeddings Benchmark (MLEB)](https://arxiv.org/abs/2510.19365) as well.
 ```bibtex
 @misc{guha2023legalbench,
       title={LegalBench: A Collaboratively Built Benchmark for Measuring Legal Reasoning in Large Language Models}, 
@@ -94,11 +94,13 @@ If you use this dataset, please cite [MLEB](https://isaacus.com/mleb) as well.
       primaryClass={cs.CL}
 }
 
-@misc{mleb-2025,
-  title={Massive Legal Embedding Benchmark (MLEB)},
-  author={Umar Butler and Abdur-Rahman Butler},
-  year={2025},
-  url={https://isaacus.com/blog/introducing-mleb},
-  publisher={Isaacus}
+@misc{butler2025massivelegalembeddingbenchmark,
+      title={The Massive Legal Embedding Benchmark (MLEB)}, 
+      author={Umar Butler and Abdur-Rahman Butler and Adrian Lucas Malec},
+      year={2025},
+      eprint={2510.19365},
+      archivePrefix={arXiv},
+      primaryClass={cs.CL},
+      url={https://arxiv.org/abs/2510.19365}, 
 }
 ```