Remove duplicate the in metadata title

Author: mattwojo

WSL/index.md

@@ -1,5 +1,5 @@
 ---
-title: An overview on the the Windows Subsystem for Linux
+title: An overview on the Windows Subsystem for Linux
 description: Explore the Windows Subsystem for Linux documentation.
 keywords: BashOnWindows, bash, wsl, windows, windowssubsystem, gnu, linux
 ms.topic: article