Improve docs for with special form
Improve docs for with special form

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