Update metadata title for WSL2 faq

Based on #1055

Author: mattwojo

WSL/wsl2-faq.yml

@@ -1,6 +1,6 @@
 ### YamlMime:FAQ
 metadata:
-  title: WSL 2 Frequently Asked Questions
+  title: FAQ's about Windows Subsystem for Linux 2
   description: "Find answers to frequently asked questions (FAQs) about the Windows Subsystem for Linux 2, like 'Can I run WSL 2 on a virtual machine?'."
   keywords: BashOnWindows, bash, wsl, wsl2, windows, windows subsystem for linux, windowssubsystem, ubuntu, debian, suse, windows 10, install
   ms.date: 05/30/2019