Windows installation default instructions

[jd-foster]

Relating to file install/index.md and the page https://julialang.org/install/
Based on https://discourse.julialang.org/t/a-graphical-julia-installer-for-windows/128413/47

I think that the default installation option presented to a generic Windows user when clicking Install on julialang.org should be the stand-alone graphical installer, that is in fact available from the 'Manual Downloads' page on the site.
The reason is that I would bet that the majority/typical user on Windows is not development-oriented (as evidence, see multiple threads on Discourse about the lack of such users)

The approach of using a command-line to install juliaup (which I love for development on macOS) is not typical of such users’ way of thinking about installation.

I would recommend that the primary and most visible option be that users are directed to the instructions at
https://julialang.org/downloads/platform/#windows
and most should then download of the .exe installer as available from 'Manual Downloads'.