change wsl version code example

Example 1: change wsl to version 1

wsl --set-version Ubuntu-18.04 1

// Run the above command from windows powershell 
// This assumes you are running Ubuntu 18.04

Example 2: switch installed linx to wsl2

wsl.exe --set-version Ubuntu 2

Example 3: powershell set wsl 2

dism.exe /online /enable-feature /featurename:VirtualMachinePlatform /all /norestart