Add pipeline tag, library name, and paper link

This PR adds the `pipeline_tag` and `library_name` to the model card metadata and adds a link to the Hugging Face paper page. This improves discoverability and clarity of the model card.

README.md

@@ -1,12 +1,14 @@
 ---
-license: apache-2.0
 base_model:
-  - THUDM/CogVideoX-5b
+- THUDM/CogVideoX-5b
 language:
-  - en
+- en
+license: apache-2.0
 tags:
-  - video-generation
-  - paddlemix
+- video-generation
+- paddlemix
+pipeline_tag: image-to-video
+library_name: paddlemix
 ---
 
 English | [简体中文](README_zh.md)
@@ -15,7 +17,7 @@ English | [简体中文](README_zh.md)
   <p align="center"> 
   <a href="https://huggingface.co/PaddleMIX">🤗 Huggingface Space</a> |
   <a href="https://github.com/PaddlePaddle/PaddleMIX/tree/develop/ppdiffusers/examples/ppvctrl">🌐 Github </a> | 
-  <a href="">📜 arxiv </a> |
+  <a href="https://huggingface.co/papers/2503.16983">📜 arxiv </a> |
   <a href="https://pp-vctrl.github.io/">📷 Project </a> 
 </p>