Add a Windows Defender Exclusion for Hugo

So I was trying to figure out why my PC was slowing down to a crawl while I was working on the new version of this website … Turns out Windows Defender was going haywire when the Hugo development server was rebuilding my offline testing version of the site.
The solution to this problem is to exclude hugo site directories from Windows Defender scans. But heed Microsoft’s warning words:
Danger
Use Microsoft Defender Antivirus extensions sparingly. Make sure to review the information in Manage exclusions for Microsoft Defender for Endpoint and Microsoft Defender Antivirus. Variables, such as
%USERPROFILE%
aren’t interpreted in exclusion settings. We recommend using an explicit path format.