Talk:Nix Installation Guide

I have just added a clarifying header that refers back to more official documentation here, because I had a first-time user follow the instructions on this page to install Nix.

I think it's a better idea to first follow the instructions in the official docs and resort to this wiki to fill the gaps.

IMO Nix has a bit of a problem with documentation being so fragmented and I think linking relevant official sources is a good measure to take for improving that situation.

Let me know what you think about this.