update pkgs readme

README.md

@@ -32,6 +32,11 @@ git lfs install
 git clone https://huggingface.co/spaces/emc348/faces-through-time
 ```
 
+To run StyleGAN, install the following packages
+```
+pip install click requests tqdm pyspng ninja imageio-ffmpeg==0.4.3 torch==1.9.1+cu111 torchvision
+```
+
 To run with cuda, change line 3 in `configs/global_config.py` to
 ```python
 device = "cuda"