Merge (#9)

* Update new_design.md

* Update new_design.md

* Co powinna zawierać strona główna - update (#43)

* Change to ruby:2

* Next Architecture Meeting

* #32 Co powinna zawierać "Główna strona"?

* Update #32

* Info odnośnie eventu (#42)

* Update new_design.md

* Update new_design.md

* Notatka ze spotkania architektonicznego Messaging (#46)

Co-authored-by: Krzysztof Madej <[email protected]>
Co-authored-by: Maciej Gos <[email protected]>
Co-authored-by: Kamil Mrzygłód <[email protected]>
Co-authored-by: Łukasz Kałużny <[email protected]>
Co-authored-by: Emil Wasilewski <[email protected]>