Windows 11 pinned apps docs

pinned-docs.md

https://learn.microsoft.com/en-us/powershell/module/startlayout/get-startapps?view=windowsserver2022-ps1

https://learn.microsoft.com/en-us/powershell/module/startlayout/import-startlayout?view=windowsserver2022-ps

https://learn.microsoft.com/en-us/powershell/module/startlayout/export-startlayout?view=windowsserver2022-ps

https://learn.microsoft.com/en-us/windows/configuration/customize-start-menu-layout-windows-11