[PATCH] doc: document basic MSVC build requirements

[Thomas Monjalon]

17/11/2023 22:19, Tyler Retzlaff:
> Document the basic requirements for download and add an option
> describing how to build with MSVC.
> 
> Signed-off-by: Tyler Retzlaff <roretzla at linux.microsoft.com>

Applied with few indent fixes, thanks.