syntax fix

app.py

@@ -151,7 +151,7 @@ with gr.Blocks() as vctk:
             voice = gr.Dropdown(voicelist, label="Voice", info="Select a default voice.", value='m-us-2', interactive=True)
             lang =gr.Dropdown(
                 [
-                    ['English (US)', 'en-us'],,
+                    ['English (US)', 'en-us'],
                     # artificial
                     ['Lojban', 'jb'],
                     # natural non-native to voice
@@ -171,7 +171,7 @@ with gr.Blocks() as vctk:
                     ['Slovene (Non-native)', 'sl'],
                     ['Spanish (Non-native)', 'es'],
                     ['Swedish (Non-native)', 'sv'],
-                    ['Turkish (Non-native)', 'tr']
+                    ['Turkish (Non-native)', 'tr'],
                 ],
                 label="Language",
             )