[doc] Poor Windows Compilation experience

[rgaudin]

README says

Libkiwix has to be compiled dynamically, the best way to have it is to use kiwix-build.

https://github.com/kiwix/kiwix-build/wiki/Setup-dev-environment-on-Windows is a great help but it's far from working straight up for a newcomer. There are PATH issues, tests not working and needing to be disabled and the missing openSSL v1.1.1 dlls that are mandatory but mentioned nowhere. Also main is currently broken ; also there's no direction on how to achieve it when not making a release (--make-release not working)

I got it to compile so it's just a matter of documentation but I think someone (not me) should setup a clean VM and follow those steps to update what needs to be.