Update README.md

Author: leoxiaobin

README.md

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 # Deep High-Resolution Representation Learning for Human Pose Estimation (CVPR 2019)
 ## News
+- [2020/02/01] We have added demo code for HRNet. Thanks [Alex Simes](https://github.com/alex9311). 
 - Visualization code for showing the pose estimation results. Thanks Depu!
 - If you are interested in internship or research positions related to computer vision in ByteDance AI Lab, feel free to contact me(leoxiaobin-at-gmail.com).
 - [2019/08/27] HigherHRNet is now on [ArXiv](https://arxiv.org/abs/1908.10357), which is a bottom-up approach for human pose estimation powerd by HRNet. We will also release code and models at [Higher-HRNet-Human-Pose-Estimation](https://github.com/HRNet/Higher-HRNet-Human-Pose-Estimation), stay tuned!