Update app.py

app.py

@@ -34,7 +34,7 @@ def generate_content(image):
         f"Write a funny, interesting children's story that precisely centered on this scene {caption}\nStory:"
         f"in third-person narrative, that describes this scene exactly: {caption} "
         f"mention the exact place, location or venue within {caption}"
-        f"Avoid numbers and random letter combinations\n"
+        f"Avoid numbers,random letter combinations\n,and single-letter combinations"
     )
     
     # Generate raw story