Update app.py

app.py

@@ -60,7 +60,7 @@ def generate(
 
     
 mychatbot = gr.Chatbot(
-    avatar_images=["./user.png", "./stella.jpg"], bubble_full_width=False, show_label=False, show_copy_button=True, likeable=True,)
+    avatar_images=["./user.png", "./stella.jpg"], bubble_full_width=False, show_label=False, show_copy_button=True, likeable=True, value=[["Welcome to Tomoniai's Mixtral 8x7b Chat!", None]])
 
 demo = gr.ChatInterface(fn=generate, 
                         chatbot=mychatbot,