Update paper link and citation info

Hi! I'm Niels from the Hugging Face community science team.

This PR updates the dataset card to include the correct link to the paper and completes the BibTeX citation with the ArXiv ID `2601.11425`. I've also added the ArXiv ID to the YAML metadata to properly link the dataset to its corresponding paper page on the Hub.

README.md

@@ -1,4 +1,14 @@
 ---
+language:
+- en
+license: other
+size_categories:
+- 1M<n<10M
+task_categories:
+- image-to-text
+- image-text-to-text
+pretty_name: PubMed-OCR
+arxiv: 2601.11425
 dataset_info:
   features:
   - name: basename
@@ -22,21 +32,12 @@ configs:
   data_files:
   - split: train
     path: train-*.parquet
-license: other
 license_name: pubmed-ocr-multiple-cc-licenses
-task_categories:
-- image-to-text
-- image-text-to-text
-language:
-- en
 tags:
 - biology
 - medical
 - ocr
 - multimodal
-pretty_name: PubMed-OCR
-size_categories:
-- 1M<n<10M
 ---
 
 # PubMed-OCR: PMC Open Access OCR Annotations
@@ -63,7 +64,7 @@ This dataset is intended to support layout-aware modeling, coordinate-grounded Q
 ### Dataset Sources
 
 - **Repository:** https://huggingface.co/datasets/rootsautomation/pubmed-ocr
-- **Paper:** Coming Soon
+- **Paper:** [PubMed-OCR: PMC Open Access OCR Annotations](https://huggingface.co/papers/2601.11425)
 - **Source corpus:** PubMed Central Open Access (PMCOA)
 
 ## Uses
@@ -197,7 +198,7 @@ If you use PubMed-OCR, please cite:
 @article{heidenreich2025pubmedocr,
   title={PubMed-OCR: PMC Open Access OCR Annotations},
   author={Heidenreich, Hunter and Getachew, Yosheb and Dinica, Olivia and Elliott, Ben},
-  journal={arXiv preprint arXiv:XXXX.XXXXX},
+  journal={arXiv preprint arXiv:2601.11425},
   year={2025}
 }
 ```