Chore/update readme (#1) (#2)

* update: README.md

* update: README.md

* update: README.md

* update: README.md

* update: added env vars docs

* update: added routers docs

* update: added handlers docs

* update: make command for docker

* update: README.md

* update: README.md

* update: added a post handler

* update: cleanup

* update: README.md

---------

Co-authored-by: JocelynPinto <162846923+JocelynPinto@users.noreply.github.com>