Add missing --coverageDirectory documentation

[frosas]

Summary

Jest CLI supports that option but it's not currently documented.

Test plan

N/A

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[frosas]

I guess at least https://github.com/facebook/jest/blob/main/docs/CLI.md will need to be updated too but I'll let you confirm it first.

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[mrazauskas]

Thanks. Good idea to add it.

I guess at least https://github.com/facebook/jest/blob/main/docs/CLI.md will need to be updated too but I'll let you confirm it first.

That’s right. This and all versioned docs should be updated as well, because this flag was added at least before Jest 20.

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[SimenB]

closing and reopening to make bot less noisy

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[frosas]

@mrazauskas done. It was introduced in v19 https://github.com/facebook/jest/blob/d8e29382c9cb83f6f7a712c9dc2835b69a81e5f5/CHANGELOG.md?plain=1#L3135 so I updated all the available documentation versions.

[SimenB]

thanks!

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