Дословный перевод куска с services—services #8
union all commits to one.
Merge pull request #4 from zzet/master

Дословный перевод куска с services—services #8
updated format text
resolved incorrect pull.
Merge branch 'master' of https://github.com/nikolaifedorov/RestApiTutorial.ru into 1-add-info-about-safety