Minor IO.ANSI documentation fix
Minor IO.ANSI documentation fix

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