Update IEx.pry documentation
Update IEx.pry documentation

Modified example that works with the current version of Elixir. Fix some typos in the pry console.
beedub/elixir,gfvcastro/elixir,gfvcastro/elixir,beedub/elixir,antipax/elixir,kimshrier/elixir,kelvinst/elixir,elixir-lang/elixir,ggcampinho/elixir,michalmuskala/elixir,lexmag/elixir,antipax/elixir,pedrosnk/elixir,kimshrier/elixir,pedrosnk/elixir,joshprice/elixir,ggcampinho/elixir,lexmag/elixir,kelvinst/elixir