Update README.md

Author: kwea123

README.md

@@ -34,7 +34,7 @@ This implementation has **strict** requirements due to dependencies on other lib
 * Clone this repo by `git clone https://github.com/kwea123/ngp_pl`
 * Python>=3.8 (installation via [anaconda](https://www.anaconda.com/distribution/) is recommended, use `conda create -n ngp_pl python=3.8` to create a conda environment and activate it by `conda activate ngp_pl`)
 * Python libraries
-    * Install pytorch by `pip install torch==1.11.0 torchvision==0.12.0 --extra-index-url https://download.pytorch.org/whl/cu113`
+    * Install pytorch by `pip install torch==1.11.0 --extra-index-url https://download.pytorch.org/whl/cu113`
     * Install `torch-scatter` following their [instruction](https://github.com/rusty1s/pytorch_scatter#installation)
     * Install `tinycudann` following their [instruction](https://github.com/NVlabs/tiny-cuda-nn#pytorch-extension) (pytorch extension)
     * Install `apex` following their [instruction](https://github.com/NVIDIA/apex#linux)