Improve model card: add pipeline tag and paper link

README.md

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 license: mit
+pipeline_tag: other
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 # [NeurIPS'25] VFRTok: Variable Frame Rates Video Tokenizer with Duration-Proportional Information Assumption
 
+This model is presented in the paper [VFRTok: Variable Frame Rates Video Tokenizer with Duration-Proportional Information Assumption](https://huggingface.co/papers/2505.12053).
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 <div align="center">
 
 [![arXiv](https://img.shields.io/badge/arXiv-2502.12053-904CE5.svg)](https://arxiv.org/pdf/2505.12053)&nbsp;