update app.py

app.py

@@ -0,0 +1,11 @@
+import gradio as gr
+from gtts import gTTS
+
+def text_to_speech(text):
+    tts = gTTS(text)
+    tts.save("output.mp3")
+
+    return "output.mp3"
+
+iface = gr.Interface(fn=text_to_speech, inputs="text", outputs="file")
+iface.launch()