[PL] Translation of Guardian lesson (#907)
[PL] Translation of Guardian lesson (#907)

* [PL] first part of translation about JWT

* [PL] first part of translation about db

* [PL] first part of translation about setupt and HTTP

* [PL] complete Guardian Translation

doomspork/elixir-school,nscyclone/elixir-school,erickgnavar/elixir-school,doomspork/elixir-school,erickgnavar/elixir-school,doomspork/elixir-school,psantos10/elixir-school,psantos10/elixir-school,erickgnavar/elixir-school,doomspork/elixir_school,nscyclone/elixir-school,psantos10/elixir-school,nscyclone/elixir-school,doomspork/elixir_school,doomspork/elixir_school,nscyclone/elixir-school