elixir etl - make data types for tests consistent with the README
elixir etl - make data types for tests consistent with the README

Egogre/xelixir,tjcelaya/xelixir,elasticdog/xelixir,montague/xelixir,wobh/xelixir,parkerl/xelixir,exercism/xelixir,henrik/xelixir,cezarykosko/xelixir,victorlcampos/xelixir