Update app.py

app.py

@@ -5,7 +5,7 @@ def greet(name):
 
 subject = gr.Textbox(placeholder="subject")
 foo_bar_btn = gr.Button("Foo bar.")
-foo_bar_btn.click(None, [], subject, _js=responsiveVoice.speak("ciao"))
+foo_bar_btn.click(None, [], subject, _js="responsiveVoice.speak('ciao')")
 
 iface = gr.Interface(fn=greet, inputs="text", outputs="text")
 iface.launch()