Update app.py

app.py

@@ -40,7 +40,7 @@ def main():
         "gpt2": "GPT2",
         "gpt2-medium": "GPT2 Medium",
         "gpt2-large": "GPT2 Large",
-        "gpt2-xl": "GPT2 XL",
+        "gpt2-xl": "GPT2 XL"
         # Add more models here if desired
     }