[3pt] feedback: Справочник по API | Introduce "virtual bucket" as term

[TarantoolBot]

Product: Tarantool, VShard
Root document: https://www.tarantool.io/ru/doc/latest/reference/reference_rock/vshard/vshard_api/#router-api-info

Details

In the API reference, the term "virtual bucket" is translated into Russian as «виртуальный сегмент».
The term «сегмент» is not introduced properly.
Users get confused and do not understand that by «сегмент» the document means "bucket".

The term "virtual bucket" should also be introduced properly in the "Sharding" document and the "Architecture" document.

Definition of done

• The term "virtual bucket" is introduced as :term: in "Sharding" and "Architecture".
• In the API reference, it is clearly mentioned that by «сегмент» the document means "bucket".