Add `library_name` and update paper link

This PR enhances the model card by:
- Adding the `library_name: transformers` tag to the metadata, enabling the "Use in Transformers" widget on the model page.
- Updating the link to the technical report in the main description to point to the official Hugging Face paper page: [CoDA: Coding LM via Diffusion Adaptation](https://huggingface.co/papers/2510.03270).
- Adding the official paper URL to the BibTeX citation.

README.md

@@ -1,8 +1,9 @@
 ---
-license: cc-by-nc-4.0
 language:
 - en
+license: cc-by-nc-4.0
 pipeline_tag: text-generation
+library_name: transformers
 tags:
 - text diffusion model
 - language model
@@ -15,7 +16,7 @@ tags:
 
 <p align="center">
   <a href="https://github.com/SalesforceAIResearch/CoDA"><strong>Try CoDA</strong></a> ·
-  <a href="https://github.com/SalesforceAIResearch/CoDA/blob/main/technical_report.pdf"><strong>Technical Report</strong></a> ·
+  <a href="https://huggingface.co/papers/2510.03270"><strong>Paper</strong></a> ·
   <a href="https://huggingface.co/collections/Salesforce/coda-68d627d87921c0e28a69e340"><strong>Model Collection</strong></a> ·
   <a href="https://github.com/SalesforceAIResearch/CoDA/blob/main/README.md"><strong>GitHub Repository</strong></a>
 </p>
@@ -197,7 +198,8 @@ Technical report coming soon. For now, please cite:
   title={CoDA: Coding LM via Diffusion Adaptation},
   author={Chen, Haolin and Wang, Shiyu and Qin, Can and Pang, Bo and Liu, Zuxin and Qiu, Jielin and Zhang, Jianguo and Zhou, Yingbo and Chen, Zeyuan and Xu, Ran and Heinecke, Shelby and Savarese, Silvio and Xiong, Caiming and Wang, Huan and Yao, Weiran},
   year={2025},
-  publisher={Salesforce AI Research}
+  publisher={Salesforce AI Research},
+  url={https://huggingface.co/papers/2510.03270}
 }
 ```