re-fix demo

app.py

@@ -248,9 +248,10 @@ target_languages = [
 ]
 
 # Create an enhanced Gradio interface
-with gr.Blocks(title="Test-Time Machine Translation with Plan2Align")
-    gr.Markdown("Showing how the reward model evaluates different translation candidates. Plan2Align 2025. Predictive Planning Based Test-Time Preference Alignmentin Paragraph-Level Machine Translation")
-    
+with gr.Blocks(title="Test-Time Machine Translation with Plan2Align") as demo:
+    gr.Markdown("#Translation with Plan2Align")
+    gr.Markdown("This demo uses the Plan2Align approach to translate Chinese text to your chosen language, showing how the reward model evaluates different translation candidates.")
+    gr.Markdown("Predictive Planning Based Test-Time Preference Alignment in Paragraph-Level Machine Translation")
     with gr.Row():
         with gr.Column(scale=1):
             source_text = gr.Textbox(