docs: tweak grammar

[jergason]

"comprised of" is incorrect, since "comprise" means "to include" and refers to the whole, not the parts. Change "comprised of" to "composed of". See https://www.dictionary.com/e/comprise-vs-compose/ for an explanation.

[typescript-eslint]

Thanks for the PR, @jergason!

typescript-eslint is a 100% community driven project, and we are incredibly grateful that you are contributing to that community.

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Thanks again!

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