Update app.py

app.py

@@ -217,7 +217,7 @@ def chat(user_input):
     audio_file = f"{audio_id}.mp3"
     tts.save(audio_file)
 
-    history_display = [(h["rol"],h["content"]) for h in chathistory]
+    history_display = [(h["role"],h["content"]) for h in chathistory]
     return history_display, audio_file
 
 with gr.Blocks(css=custom_css) as demo: