Standardize examples style and improve guards in Access
Standardize examples style and improve guards in Access

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