fix missing img

app.py

@@ -7,6 +7,8 @@ model = torch.hub.load('pytorch/vision:v0.6.0', 'resnet18', pretrained=True).eva
 response = requests.get("https://git.io/JJkYN")
 labels = response.text.split("\n")
 
+torch.hub.download_url_to_file("https://github.com/pytorch/hub/raw/master/images/dog.jpg", "dog.jpg")
+
 def predict(inp):
   inp = transforms.ToTensor()(inp).unsqueeze(0)
   with torch.no_grad():
@@ -17,7 +19,7 @@ def predict(inp):
 demo = gr.Interface(fn=predict, 
              inputs=gr.inputs.Image(type="pil"),
              outputs=gr.outputs.Label(num_top_classes=3),
-             examples=[["cheetah.jpg"]],
+             examples=[["dog.jpg"]],
              )
              
 demo.launch()