Use any language file as an example.

The language files are the text files contain the text translations in Key=Value pairs.
Translate the values rigth the '='-symblol to you native language, don't change the keys left the '='-symblol.
Send the new language file to me at the email <duplicate.searcher@yandex.com> or <duplicate.searcher@gmail.com>.
I'll add it to the new release.