docs: add arXiv paper BibTex

Author: donghaoren

CITATION.cff

@@ -25,3 +25,4 @@ preferred-citation:
   title: "Embedding Atlas: Low-Friction, Interactive Embedding Visualization"
   year: 2025
   journal: arXiv
+  url: https://arxiv.org/abs/2505.06386

README.md

@@ -46,6 +46,20 @@ import { EmbeddingAtlas, EmbeddingView, Table } from "embedding-atlas/svelte";
 
 ## BibTeX
 
+For the Embedding Atlas tool:
+
+```bibtex
+@misc{ren2025embedding,
+  title={Embedding Atlas: Low-Friction, Interactive Embedding Visualization},
+  author={Donghao Ren and Fred Hohman and Halden Lin and Dominik Moritz},
+  year={2025},
+  eprint={2505.06386},
+  archivePrefix={arXiv},
+  primaryClass={cs.HC},
+  url={https://arxiv.org/abs/2505.06386},
+}
+```
+
 For the algorithm that automatically produces clusters and labels in the embedding view:
 
 ```bibtex