WIP docs: add architecture docs
WIP docs: add architecture docs

JanPietrzyk/router,shangyilim/router,IgorMinar/router,loomio/router,kyroskoh/router,angular/router,AyogoHealth/router,excellalabs/router,loomio/router,IgorMinar/router,rakeshbhavsar/router,kyroskoh/router,AyogoHealth/router,shangyilim/router,rakeshbhavsar/router,shangyilim/router,IgorMinar/router,excellalabs/router,JanPietrzyk/router