update README.md

update README.md

update README.md

update README.md

update README.md

update README.md

update demo/postman_collection.json

upload files

delete dev/solution.py

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

delete spec/Текстовый документ.txt

upload files

update dev/solution.py

delete spec/codex.md

delete spec/Текстовый документ.txt

upload files

delete spec/codex.md

update codex.md

update codex.MD

update README.md

update README.md