Update nix.md - made the mistake of not realising civibuild had to be ran...
Update nix.md - made the mistake of not realising civibuild had to be ran within the subshell, thought it would be helpful for future users to add a little snippet
Update nix.md - made the mistake of not realising civibuild had to be ran within the subshell, thought it would be helpful for future users to add a little snippet