Update app.py

app.py

@@ -164,9 +164,9 @@ def build_ui(model_dir, device=0):
 
     with gr.Blocks() as demo:
         # Use HTML for centered title
-        gr.HTML('<h1 style="text-align: center;">(Unofficial) Spark-TTS by SparkAudio</h1>')
+        gr.HTML('<h1 style="text-align: center;">(Official) Spark-TTS by SparkAudio</h1>')
         with gr.Tabs():
-            # Voice Clone Tab
+            # Voice Clone Tab  
             with gr.TabItem("Voice Clone"):
                 gr.Markdown(
                     "### Upload reference audio or recording （上传参考音频或者录音）"