The link to the setup guide is broken

[MartinBubenheimer]

At multiple places in this Git a setup guide is referenced, but the link is broken (HTTP error 404):
https://github.com/Microsoft/PowerBI-visuals/blob/master/Readme.md#setting-up-environment

[helen508light]

@MartinBubenheimer it is because PowerBI-visuals repo is archived, we'll update the link