Add Detectron2

requirements.txt

@@ -1,7 +1,7 @@
 pyyaml==5.1
 torch==1.10.0
 torchvision==0.12.0
-detectron2 @ https://dl.fbaipublicfiles.com/detectron2/wheels/cpu/torch1.10/detectron2-0.6+cpu-cp39-cp39-linux_x86_64.whl
+pip install -e 'git+https://github.com/facebookresearch/detectron2.git'
 
 gradio
 numpy