Fixed doc typos in Macro
Fixed doc typos in Macro

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