Update app.py

app.py

@@ -270,6 +270,7 @@ The new pose should be pixel accurate to the pose we are trying to copy.
 The position of the arms and head and legs should be the same as the pose we are trying to copy. 
 Change the field of view and angle to match exactly image 2. Head tilt and eye gaze pose should match the person in image 2. 
 Remove the background of image 2, and replace it with the background of image 1.
+Don't change the identity of the person in image 1, keep their appearance the same, it is undesirable to change their facical features or hair style. don't do it.
 """
 
 def use_output_as_input(output_images):
@@ -283,7 +284,7 @@ def use_output_as_input(output_images):
 def infer(
     reference_image,
     pose_image,
-    prompt,
+    prompt=DEFAULT_LORA_PROMPT,
     seed=42,
     randomize_seed=False,
     true_guidance_scale=1.0,