Martin Lavoie

Add better documentation about the templating system and the attribute parameters

2

@nmattia yes, it does (thank you by the way!), though I think the role of attributes should be clarified, at least on the readme, what do you think? The relationship...

Add niv branches traking the branches from nixpkgs

3

There seems to be some interest for niv having branches compatible with the release branches of nixpkgs. (See https://github.com/nmattia/niv/issues/311) However, I'd like to ask if it is worth it? Would...