docs(guide/ru,uk): docs for translate-value-*

Docs for `translate-value-*` added to Ukrainian and Russian versions of the Guide.
docs(guide/ru,uk): sync -> async

Documentation about sync->async mode changes added to the Ukrainian and Russian versions
of the Guide.
docs(guide/ru,uk): Events breaking change

Update events docs due to breaking changes
docs(guide/ru,uk): docs for determinePreferredLanguage method

Docs for determinePreferredLanguage method are added to the Ukrainian and Russian parts
of the Guide.
docs(guide/ru,uk): Add Security chapter

Docs about escaping added to Ukrainian and Russian versions of the Guide
Merge pull request #340 from DWand/chore-guide

chore(guide/ru,uk)