Use DB to update rules

[Alexey Berezin]

Link to cities: https://maps.vlasenko.net/list/russia/

[Paul Damnhorns]

Wow! This is a great data set! Didn't know about it.
I'll add them to tests folder for backup purposes ;)
And add a link to README.md

But for real tests needed 3 incline forms of cities. Maybe you have any ideas about how current data-set can be used in tests?