Update System.build_info docs
Update System.build_info docs

kimshrier/elixir,joshprice/elixir,lexmag/elixir,beedub/elixir,antipax/elixir,kimshrier/elixir,ggcampinho/elixir,kelvinst/elixir,ggcampinho/elixir,beedub/elixir,antipax/elixir,pedrosnk/elixir,lexmag/elixir,michalmuskala/elixir,gfvcastro/elixir,pedrosnk/elixir,kelvinst/elixir,elixir-lang/elixir,gfvcastro/elixir