add solution to incompatible torchvision version

README.md

@@ -29,6 +29,11 @@ If you encounter an issue of opencv, you may need to reinstall opencv-python:
 pip install opencv-contrib-python
 ```
 
+If you meet a problem of `incompatible torchvision version`, try the following: 
+``` shell
+pip install torchvision==0.15.2+cu118 --index-url https://download.pytorch.org/whl/cu118
+```
+
 ## Inference
 ``` python
 from utils import *