Improve model card: Add pipeline tag and paper link

README.md

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 # [NeurIPS'25] VFRTok: Variable Frame Rates Video Tokenizer with Duration-Proportional Information Assumption
 
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 <img src="assets/teaser.png" alt="Teaser" width="512">
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+This model was 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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 ## Get Started
 ### Download Pretrain Models
 The weights `vfrtok-l.bin` and `vfrtok-s.bin` can be downloaded [here](https://huggingface.co/KwaiVGI/VFRTok).