code style fixes

Merge pull request #33 from seregazhuk/dev

Pagination

Merge pull request #32 from seregazhuk/dev

resolves #31

Merge pull request #30 from seregazhuk/dev

fix: active vacancies for manager

Merge pull request #29 from seregazhuk/dev

fix: resolving manager in vacancies

Merge pull request #27 from seregazhuk/dev

Vacancies update

Merge pull request #25 from seregazhuk/dev

Dev

Merge pull request #24 from seregazhuk/dev

Dev

fix: resolving endpoints out of the container

add: contributing.md