Add library_name metadata and improve paper linking

This PR improves the model card and metadata by:
- Adding `library_name: transformers` to the YAML metadata to enable the "Use in Transformers" button.
- Linking the model card to the original research paper: [Edit-Based Refinement for Parallel Masked Diffusion Language Models](https://huggingface.co/papers/2605.09603).
- Listing the authors of the paper.
- Adding a BibTeX citation section for researchers.

README.md

@@ -1,14 +1,20 @@
 ---
-language:
-- en
 base_model:
 - GSAI-ML/LLaDA-8B-Base
+language:
+- en
 pipeline_tag: text-generation
+library_name: transformers
 ---
+
 ## Edit-Based Refinement for Parallel Masked Diffusion Language Models
 
+This repository contains the Stage 3 checkpoint for **ME-DLM**, as presented in the paper [Edit-Based Refinement for Parallel Masked Diffusion Language Models](https://huggingface.co/papers/2605.09603).
+
+**Authors**: Houxing Ren, Mingjie Zhan, Zimu Lu, Ke Wang, Yunqiao Yang, Haotian Hou, Junting Pan, Hongsheng Li.
+
 <p align="center">
-    <a href="https://arxiv.org/abs/2605.09603">📄 Paper</a> •
+    <a href="https://huggingface.co/papers/2605.09603">📄 Paper</a> •
     <a href="https://github.com/renhouxing/ME-DLM">🏠 Repo</a> •
     <a href="https://huggingface.co/renhouxing/ME-DLM-Stage3">🤖 Models</a>
 </p>
@@ -25,6 +31,17 @@ ME-DLM is a lightweight edit-based refinement framework for masked diffusion lan
 | ME-DLM Stage 2   | 🤗 [HF Link](https://huggingface.co/renhouxing/ME-DLM-Stage2) |
 | ME-DLM Stage 3   | 🤗 [HF Link](https://huggingface.co/renhouxing/ME-DLM-Stage3) |
 
+## Citation
+
+```bibtex
+@article{ren2025edit,
+  title={Edit-Based Refinement for Parallel Masked Diffusion Language Models},
+  author={Ren, Houxing and Zhan, Mingjie and Lu, Zimu and Ke Wang and Yang, Yunqiao and Hou, Haotian and Pan, Junting and Li, Hongsheng},
+  journal={arXiv preprint arXiv:2605.09603},
+  year={2025}
+}
+```
+
 ## Acknowledgments
 
 We thank the following amazing projects that truly inspired us: