Blog Ghost Casper topic, how to localize min read?

Question

Ghost

Hello, I started my own blog, it is intended for Russian-speaking users, I started to localize the theme, for this I downloaded it and re-uploaded it, renamed it and started searching with grep, but Ghost itself is in the docker and I can’t get access to the docker console ... I
created the locales folder, in it ru.json, localized all the lines, then I realized that in Casper a lot is written directly into the template and is not localized as described in the documentation, but I can’t find where you can localize
1 min read, 2 min read and the like in all posts, there it writes like for reading so many minutes, but there is no min read in the folder with the template !!!
Please tell me how to be, where to look for this line.