Fixed format of date, oops.

IEvangelist · IEvangelist · commit 2b800c764074 · 2019-12-16T14:37:09.000-06:00
diff --git a/articles/cognitive-services/Speech-Service/how-to-custom-speech-test-data.md b/articles/cognitive-services/Speech-Service/how-to-custom-speech-test-data.md
@@ -8,7 +8,7 @@ manager: nitinme
 ms.service: cognitive-services
 ms.subservice: speech-service
 ms.topic: conceptual
-ms.date: 012/16/2019
+ms.date: 12/16/2019
 ms.author: erhopf
 ---
 
