update change date

Author: Wolfgang Manousek

articles/cognitive-services/Speech-Service/faq-stt.md

@@ -8,7 +8,7 @@ manager: nitinme
 ms.service: cognitive-services
 ms.subservice: speech-service
 ms.topic: conceptual
-ms.date: 10/17/2019
+ms.date: 12/4/2019
 ms.author: panosper
 ---