Update date

Author: Colin Robertson

docs/cpp/index.yml

@@ -6,7 +6,7 @@ metadata:
   title: C++ docs - get started, tutorials, reference.
   description: C++ programming reference for users of Microsoft C++ and Visual Studio.
   ms.topic: landing-page
-  ms.date: 05/08/2020
+  ms.date: 03/22/2022
   ms.custom: intro-landing-hub
 
 # linkListType: architecture | concept | deploy | download | get-started | how-to-guide | learn | overview | quickstart | reference | tutorial | video | whats-new
@@ -117,4 +117,4 @@ landingContent:
           - text: Regular expressions
             url: ../standard-library/regular-expressions-cpp.md
           - text: File system navigation
-            url: ../standard-library/file-system-navigation.md
+            url: ../standard-library/file-system-navigation.md