update README.md

update README.md

update README.md

Запрос на слияние 'Practice10' (#1) из Practice10 в master

create README.md

upload files

update dev/solution.cs

upload files

upload files

update dev/solution.cs

upload files

delete demo/solution.cs

upload files

delete demo/rt.json

create README.md

update solution.cs

create solution.cs