[PL] #850 spectype translation  (#854)
[PL] #850 spectype translation  (#854)

* [PL] spec part translation

* [PL] add polish translation of spec and types #850

doomspork/elixir_school,psantos10/elixir-school,huydx/elixir-school,huydx/elixir-school,ElixirVietnam/elixir-school,huydx/elixir-school,nscyclone/elixir-school,psantos10/elixir-school,doomspork/elixir-school,doomspork/elixir-school,nscyclone/elixir-school,nscyclone/elixir-school,doomspork/elixir_school,ElixirVietnam/elixir-school,erickgnavar/elixir-school,erickgnavar/elixir-school,doomspork/elixir_school,yuriibodarev/elixir-school,yuriibodarev/elixir-school,ElixirVietnam/elixir-school,yuriibodarev/elixir-school,nscyclone/elixir-school,psantos10/elixir-school,erickgnavar/elixir-school,doomspork/elixir-school