add disclaimer

app.py

@@ -232,7 +232,7 @@ with gr.Blocks(title="Polyglot Tagger Studio", css=CSS) as demo:
           <h1 class="title">Polyglot Tagger Studio</h1>
           <div class="subtitle">
             A Gradio demo for the token-classification model behind this repo. Paste a sentence or paragraph,
-            and the app will surface the dominant language signal, token-level spans, and raw predictions.
+            and the app will surface the dominant language signal, token-level spans, and raw predictions. Note that this is experimental and does not replace a text classifier: be prepared for unexpected results.
           </div>
         </div>
         """