update to README.md

[MSSP-BLKing]

Prerequisites and etc for building on windows:

Windows 11 SDK Installed
CMAKE installed
git cli installed from git-scm.com
Visual Studio 2022 pro or better installed (community won't cut it, or I could be wrong, but you'll need some C language support installed and some Windows workspace stuff, not exactly sure, but CMAK wouldn't find the community version and I installed the pro trial version differently)