Update app.py

app.py

@@ -8,8 +8,7 @@ import torch
 
 # clone and install Detic
 os.system("git clone https://github.com/facebookresearch/Detic.git --recurse-submodules")
-os.chdir("Detic")
-os.system("pip install -r requirements.txt")
+sys.path.append('./Detic')
 
 # Some basic setup:
 # Setup detectron2 logger