Update app.py

app.py

@@ -44,7 +44,7 @@ def add_numbers(first_number:str, second_number:int)-> str:
 
     try:
         return str(float(first_number) + float(second_number))
-    catch:
+    finally:
         return f"Error adding the two parameters '{first_number}' and '{second_number}'"