Fix mistake in russian.lua (#1837)
Incorrect form
> ВЫБЕРЕТЕ ОБРАЗЕЦ
Correct
> ВЫБЕРИТЕ ОБРАЗЕЦ
The word “выберите” expresses a wish, request, or order. In this context, the verb form of the imperative plural is used.
https://russkiiyazyk.ru/orfografiya/pravopisanie/kak-pravilno-pishetsya-slovo-vyiberete-ili-vyiberite.html