Add browser compatibility note

app.py

@@ -76,6 +76,7 @@ def verify_speaker(audio_filepath, username_to_verify):
 
 with gr.Blocks() as demo:
     gr.Markdown("# Voice Authentication System")
+    gr.Markdown("❗ **Note:** For the best experience, please use **Google Chrome** or **Mozilla Firefox**. Audio recording may not work correctly on other browsers like Brave.")
     gr.Markdown("Enroll your voiceprint and then verify yourself.")
     with gr.Tabs():
         with gr.TabItem("Enrollment"):