Update app.py

app.py

@@ -85,6 +85,10 @@ demo = gr.ChatInterface(
     fill_height=True,
     chatbot=chatbot,
     css=css,
+    examples=["Define 'deep learning' in once sentence."],
+    retry_btn="Retry",
+    undo_btn="Undo",
+    clear_btn="Clear",
     # theme="allenai/gradio-theme",
     # theme="Nymbo/Alyx_Theme",
 )