Adjusted app.py

app.py

@@ -8,7 +8,7 @@ from model import create_effnetb2_model
 from timeit import default_timer as timer
 
 # Setup class names
-with open('/content/demos/foodvision_big/class_names.txt', 'r') as f:
+with open('demos/foodvision_big/class_names.txt', 'r') as f:
   class_names = [food_name.strip() for food_name in f.readlines()]
 
 ### 2. Model and transforms preparation ###