Update app.py

app.py

@@ -4,7 +4,7 @@ os.system('!git clone -b add_dit_inference_bis https://github.com/NielsRogge/uni
 
 import argparse
 import cv2
-from ditod import add_vit_config
+from unilm.dit.object_detection.ditod import add_vit_config
 from detectron2.config import get_cfg
 from detectron2.utils.visualizer import ColorMode, Visualizer
 from detectron2.data import MetadataCatalog