Help required,please!Watch this video

Watch video Is Your Chia Harvester Too SLOW to WIN Chia? One Powershell Command To Quickly & Easily Check! - YouTube
Explain,please, to illiterate of 60 how can I execute this command in PowerShell Get-ChiaHarvesterActivity -DebugLogFilePath ‘C:\Users\admin.chia\mainnet\log\debug.log’ ?
I have an account on GitHub,have installed desktop GitHub,Posh installed module etc.Explain in details ,please,how can I do what a man made in video.
My OS is Windows10pro.Thank you.