Fix a few typos and do a tiny refactor

[sadra-barikbin]

Hi there!

To fix a few typos and do a tiny refactor.

[sadra-barikbin]

Also there's no argument called model_config defined in both run_evals_accelerate.py and run_evals_nanotron.py. Is this correct?

lighteval/src/lighteval/models/model_config.py

Lines 274 to 275 in 51c06d6

	if args.model_config:
	config = args.model_config["model"]

[NathanHB]

hey thanks for the PR ! the model config arg was deprecated in favor of a file. we forgot to remove the in the constructor.

[sadra-barikbin]

I'm done @NathanHB

[NathanHB]

hey ! thanks for the PR, lgtm, i will test it locally next week and merge asap :)