Revert "change readme (test)"

This reverts commit 5905af24c41ff6173e509b5e6d4cf04394c23c81.
Revert "Revert "change readme (test)""

This reverts commit 1b347c18ddc21cfe7e9e7dc18f741c73fb41b3ab.
Merge branch 'master' of github.com-pavelbogomolenko:pavelbogomolenko/trainapp
1. simplify user object with primitive types 2. implement implicit object to json transformation
1. small refactoring 2. configure logback
small refactoring