Update app.py

app.py

@@ -19,7 +19,7 @@ inputs = [
     gr.Textbox(lines=1, 
                       label="Prompt Template Prompt", 
                       placeholder="Optional prompt template as prefix",
-                      value=""),
+                      value="a photo of a {}"),
     gr.Textbox(lines=1, 
                       label="Candidate Labels", placeholder="Add a class label, one by one",),
 ]