Fix test description in Array.mdx for toPartiallyContain

[pavellishin]

What

Fixing a test description in Array.mdx's tests for toPartiallyContain.

Why

It looks like the test description got copied-and-pasted from elsewhere, and wasn't noticed 'til now.

Housekeeping

• [ ] Unit tests
• [ ] Documentation is up to date
• [ ] No additional lint warnings
• [ ] Typescript definitions are added/updated where relevant

[changeset-bot]

⚠️ No Changeset found

Latest commit: df1335a

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