Update README.md

README.md

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 ## PaddleSeg has released the new version including the following features:
 
-* We published a paper on interactive segmentation named [EdgeFlow](https://arxiv.org/abs/2109.0406), in which the proposed approach achieved SOTA performance on serveral well-known datasets, and upgraded the interactive annotation tool, [EISeg](./EISeg).
+* We published a paper on interactive segmentation named [EdgeFlow](https://arxiv.org/abs/2109.09406), in which the proposed approach achieved SOTA performance on serveral well-known datasets, and upgraded the interactive annotation tool, [EISeg](./EISeg).
 * We released two [Matting]((./contrib/Matting)) algorithms, DIM and MODNet, which achieve extremely fine-grained segmentation.
 * We provided advanced features on segmentation model compression, [Knowlede Distillation]((./slim/distill)) and [Model Quantization]([模型量化]), which accelerate model inference on multi-devices deployment.