Update app.py

changing the audio speed rate

app.py

@@ -3,7 +3,7 @@ from gtts import gTTS
 import os
 
 def swahiliTTs(swahilitext):
-    obj = gTTS(text=swahilitext, lang="sw", slow=False)
+    obj = gTTS(text=swahilitext, lang="sw", slow=True)
     obj.save("demo.mp3")
     return "demo.mp3"