Mention r/1 helper in IEx help
Mention r/1 helper in IEx help

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