Update README.md

README.md

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 # Large Time-Series Model (Timer)
 
-[Large time-series model](https://cloud.tsinghua.edu.cn/f/b766629dbc584a4e8563/) introduced in this [paper](https://arxiv.org/abs/2402.02368) and enhanced with our [further work](https://arxiv.org/abs/2410.04803).
+Large time-series model introduced in this [paper](https://arxiv.org/abs/2402.02368) and enhanced with our [further work](https://arxiv.org/abs/2410.04803).
 
 This version is pre-trained on **307B** time points, which supports zero-shot forecasting and further adaptation. 
 * Zero-shot forecasting benchmarks: [TSLib Dataset](https://cdn-uploads.huggingface.co/production/uploads/64fbe24a2d20ced4e91de38a/n2IW7fTRpuZFMYoPr1h4O.png), [GIFT-Eval]().