Update app.py

app.py

@@ -6,7 +6,7 @@ os.system("pip install -U gradio")
 import sys 
 import gradio as gr
 # cmd0 = "pip install 'git+https://github.com/facebookresearch/detectron2.git@5aeb252b194b93dc2879b4ac34bc51a31b5aee13'"
-cm0 = "python -m pip install 'git+https://github.com/facebookresearch/detectron2.git'"
+cmd0 = "python -m pip install 'git+https://github.com/facebookresearch/detectron2.git'"
 os.system(cmd0)
 
 # clone and install Detic