Update readme.md

Author: YuDeng

readme.md

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+### **_\*\*\*07/20/2021: A [PyTorch implementation](https://github.com/sicxu/Deep3DFaceRecon_pytorch) which has much better performance and is much easier to use is available now. This repo will not be maintained in future. \*\*\*_**
 
 
 This is a tensorflow implementation of the following paper:
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 The method enforces a hybrid-level weakly-supervised training for CNN-based 3D face reconstruction. It is fast, accurate, and robust to pose and occlussions. It achieves state-of-the-art performance on multiple datasets such as FaceWarehouse, MICC Florence and BU-3DFE.
 
-**_\*\*\*A PyTorch implementation with better performance is available now. Check this [link](https://github.com/sicxu/Deep3DFaceRecon_pytorch)\*\*\*_**
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 ## Features