add Russian mmlu

[tatiana-iazykova]

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:white_check_mark: tatiana-iazykova
:x: Tatyana Yazykova

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[tatiana-iazykova]

@haileyschoelkopf @lintangsutawika @baberabb do you mind to have a look at it? I just took existing mmlu code and adapted it for Russian mmlu that many people use to assess model's understanding of the Russian language

[tatiana-iazykova]

@haileyschoelkopf @baberabb @lintangsutawika please, have a look

[tatiana-iazykova]

@lintangsutawika @baberabb hi! Do you mind giving your approve to add mmlu_ru to master?)

[baberabb]

Hi! Sorry, missed this. sorry it took so long. If you could add a row to lm_eval/tasks/README.md like all the other tasks, it should be good to merge

[tatiana-iazykova]

Hi! Sorry, missed this. sorry it took so long. If you could add a row to lm_eval/tasks/README.md like all the other tasks, it should be good to merge

Done

[tatiana-iazykova]

@baberabb fixed everything, need your approval and merge