Запрос на слияние 'feature' (#1) из feature в master

update assignment.py

update assignment.py

delete requirements.txt

update assignment.py

update assignment.py

update assignment.py

delete requirements.txt

update assignment.py

create requirements.txt

update assignment.py

update assignment.py

update assignment.py

update assignment.py

update assignment.py

update assignment.py

update assignment.py

update assignment.py

delete FILE_UPDATE_REPORT.md

delete CONTRIBUTING.md