Fix RU translation of reading_time variable (#363)

Co-authored-by: Pakhomov Aleksandr <Aleksandr.Pakhomv@sbb.ch>

CONTRIBUTORS.md

@@ -69,4 +69,4 @@
 - [Latiif Alsharif](https://latiif.se)
 - [Endormi](https://endormi.io)
 - [Rajiv Ranjan Singh](https://iamrajiv.github.io/)
-
+- [Pakhomov Alexander](https://github.com/PakhomovAlexander)

i18n/ru.toml

@@ -9,7 +9,8 @@ other = "серии"
 
 [reading_time]
 one = "Читать одну минуту"
-other = "Читать около {{ .Count }} минут"
+few = "Читать около {{ .Count }} минут"
+many = "Читать около {{ .Count }} минут"
 
 [page_not_found]
 other = "Страница не найдена"