Update README.md

Author: leeyeehoo

README.md

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 # CSRNet-pytorch
+
+This is the PyTorch version repo for [CSRNet: Dilated Convolutional Neural Networks for Understanding the Highly Congested Scenes](https://arxiv.org/abs/1802.10062) in CVPR 2018, which delivered a state-of-the-art, straightforward and end-to-end architecture for crowd counting tasks.
+
+## Datasets
+ShanghaiTech Dataset: [Google Drive](https://drive.google.com/open?id=16dhJn7k4FWVwByRsQAEpl9lwjuV03jVI)
+
+## Prerequisites
+We strongly recommend Anaconda as the environment.
+
+Python: 2.7
+
+PyTorch: 0.4.0
+
+CUDA: 9.2