Update README.md
Merge pull request #1 from KatyaBondarenko/development

the project was added to the repository
deleted classes BadBillsContainer, BillsScanner, Cassette, DispenserController, and new file CheckPrinter
Merge pull request #3 from KatyaBondarenko/update3

Update3
Merge pull request #4 from KatyaBondarenko/master

merge master into development