Update app.py

app.py

@@ -553,7 +553,7 @@ IMPORTANT FINAL REMINDER:
     story_instruction = f"{natural_instruction}\n\n{story_instruction}"
     
     # Generar la historia
- 	response = model.generate_content([story_instruction])
+    response = model.generate_content([story_instruction])
     if response and response.parts:
         story = response.parts[0].text.strip()
         formula_types = ["GPS", "AIDA", "4U", "Númerica Suprema"]