Update app.py

app.py

@@ -439,7 +439,7 @@ def generate_headlines(number_of_headlines, target_audience, product, temperatur
     }
 
     # Incluir las instrucciones del sistema en el prompt principal
-system_prompt = """You are a world-class copywriter, with expertise in crafting hooks, headlines, and subject lines that immediately capture the reader's attention, prompting them to open the email or continue reading.
+    system_prompt = """You are a world-class copywriter, with expertise in crafting hooks, headlines, and subject lines that immediately capture the reader's attention, prompting them to open the email or continue reading.
 
 FORMAT RULES:
 - Each headline must start with number and period