say: update page (#9452)

pages/osx/say.md

@@ -15,10 +15,14 @@
 
 `say --voice={{voice}} --rate={{words_per_minute}} "{{I'm sorry Dave, I can't let you do that.}}"`
 
-- List the available voices:
+- List the available voices (different voices speak in different languages):
 
 `say --voice="?"`
 
+- Say something in Polish:
+
+`say --voice={{Zosia}} "{{Litwo, ojczyzno moja!}}"`
+
 - Create an audio file of the spoken text:
 
 `say --output-file={{filename.aiff}} "{{Here's to the Crazy Ones.}}"`