add auth middleware & passed test:auth

Merge branch 'master' of https://github.com/rolling-scopes-school/nodejs-course-template into dev

docs: add task 5 description and crosscheck requirements

Merge branch 'task4' into dev

Merge branch 'master' of https://github.com/rolling-scopes-school/nodejs-course-template into dev

test: fix boards delete, delete board by id from created entity

tests are passed

create db.repo

docs: add fourth task requirements

docs: fix typo

docs: add command to run only specific test suite

add MongoDB & Mongoose

Merge branch 'master' of https://github.com/rolling-scopes-school/nodejs-course-template into task4

docs: add task 4 description

docs: delete id from task and board put methods