Update app.py

app.py

@@ -46,6 +46,8 @@ if __name__ == "__main__":
                 The aesthetic score is a floating-point number between 1 and 10.
 
                 5.5+ is considered to be a good aesthetic score.
+
+                You can get the model from [Github](https://github.com/discus0434/aesthetic-predictor-v2-5?tab=readme-ov-file).
                 """
             )
         )