Update date

Author: Colin Robertson

docs/overview/visual-cpp-language-conformance.md

@@ -1,7 +1,7 @@
 ---
 title: "Microsoft C++ language conformance table"
 description: "Table of Microsoft C++ conformance updates by Visual Studio version."
-ms.date: 08/06/2020
+ms.date: 11/10/2020
 ms.technology: "cpp-language"
 ms.assetid: 475da6e9-0d78-4b4e-bd23-f41c406c4efe
 author: "corob-msft"