Polish the example in the docs for Mix.Config.config/3 (#5233)
Polish the example in the docs for Mix.Config.config/3 (#5233)


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