minor fixes

app.py

@@ -210,17 +210,16 @@ def update_model_dropdown(language: str):
 
 demo = gr.Blocks(css=css)
 
-examples = (
+examples = [
     [
-        [
-            "./test_wavs/wenetspeech/DEV_T0000000000.opus",
-            "Chinese",
-            "luomingshuang/icefall_asr_wenetspeech_pruned_transducer_stateless2",
-            "greedy_search",
-            4,
-        ],
+        "./test_wavs/wenetspeech/DEV_T0000000000.opus",
+        "Chinese",
+        "luomingshuang/icefall_asr_wenetspeech_pruned_transducer_stateless2",
+        "greedy_search",
+        4,
     ],
-)
+]
+
 
 with demo:
     gr.Markdown(title)