Update app.py

app.py

@@ -163,6 +163,6 @@ label.svelte-1b6s6s {display: none}
 '''
 gr.ChatInterface(chat_interface,
                  css=css,
-                 description="Clara",
+                 description="<b>Clara<b>",
                  clear_btn=None, undo_btn=None, retry_btn=None,
                  ).launch()