Update readme
Update readme

AntonShevchuk/yandex-sdk-php,spytz/yandex-php-library,loginwashere/yandex-php-library,AntonShevchuk/yandex-sdk-php,zbarinov/yandex-php-library,nixsolutions/yandex-php-library,zbarinov/yandex-php-library,loginwashere/yandex-php-library,spytz/yandex-php-library,nixsolutions/yandex-php-library