Update app.py

app.py

@@ -58,6 +58,6 @@ demo = gr.Interface(
      ],
     gr.Image(),
     title="Watch Agents playing Atari games 🤖",
-    description="Select an environment to watch a Hugging Face's trained deep reinforcement learning agent."
+    description="Select an environment to watch a Hugging Face's trained deep reinforcement learning agent.",
     article = "time_sleep is the time delay between each frame (0.1 by default)."
 ).launch(debug=True, enable_queue=True).queue()