Fix metadata loc, remove noindex, add wsl 2 video

Author: mattwojo

WSL/about.md

@@ -5,7 +5,7 @@ keywords: BashOnWindows, bash, wsl, windows, windowssubsystem, gnu, linux
 ms.date: 07/21/2020
 ms.topic: article
 ms.assetid: 3cefe0db-7616-4848-a2b6-9296746a178b
-ROBOTS: NOINDEX
+ms.localizationpriority: high
 ---
 
 # What is the Windows Subsystem for Linux?
@@ -34,6 +34,8 @@ This new architecture changes how these Linux binaries interact with Windows and
 
 Individual Linux distributions can be run with either the WSL 1 or WSL 2 architecture. Each distribution can be upgraded or downgraded at any time and you can run WSL 1 and WSL 2 distributions side by side. WSL 2 uses an entirely new architecture that benefits from running a real Linux kernel.
 
+> [!VIDEO https://www.youtube.com/embed/MrZolfGm8Zk]
+
 ## Next steps
 
 * [Install WSL 1 and update to WSL 2](./install-win10.md)