Fix validation issues

Author: Colin Robertson

docs/overview/visual-cpp-in-visual-studio.md

@@ -7,7 +7,7 @@ helpviewer_keywords: ["Visual C++, home page"]
 ---
 # C++ in Visual Studio
 
-:::moniker range="msvc160"
+:::moniker range="msvc-160"
 
 > [!NOTE]
 > This developer documentation applies to Visual Studio 2019. To see the documentation for your preferred version of Visual Studio, use the **Version** selector control. It's found at the top of the table of contents on this page.
@@ -18,7 +18,7 @@ helpviewer_keywords: ["Visual C++, home page"]
 
 :::moniker-end
 
-:::moniker range="msvc150"
+:::moniker range="msvc-150"
 
 > [!NOTE]
 > This developer documentation applies to Visual Studio 2017. To see the documentation for your preferred version of Visual Studio, use the **Version** selector control. It's found at the top of the table of contents on this page.
@@ -27,7 +27,7 @@ helpviewer_keywords: ["Visual C++, home page"]
 
 :::moniker-end
 
-:::moniker range="msvc140"
+:::moniker range="msvc-140"
 
 > [!NOTE]
 > This developer documentation applies to Visual Studio 2015. To see the documentation for your preferred version of Visual Studio, use the **Version** selector control. It's found at the top of the table of contents on this page.

docs/porting/visual-cpp-change-history-2003-2015.md

@@ -1,5 +1,6 @@
 ---
 title: "Microsoft C/C++ change history 2003 - 2015"
+description: "Find all the breaking changes in Microsoft C/C++ from Visual Studio 2003 through Visual Studio 2015 here."
 ms.date: "10/21/2019"
 helpviewer_keywords: ["breaking changes [C++]"]
 ms.assetid: b38385a9-a483-4de9-99a6-797488bc5110