docs: harmonize paid_partnership wording across quickstarts

[mintlify]

Summary

Aligns the paid_partnership description in the Manage Posts quickstarts with the wording used in the corresponding introduction pages.

Changes

• Update the i.e. clause in x-api/posts/manage-tweets/quickstart.mdx to match the introduction's punctuation and phrasing.
• Apply the same change to enterprise-api/posts/manage-tweets/quickstart.mdx.

Context

Reviewed the files touched by 9338af0 (the paid_partnership addition) for style consistency. The two quickstarts used (i.e. the author is disclosing it contains paid promotion) while their sibling introduction pages used (i.e., the author is disclosing that the Post contains paid promotion). No other style deviations needed correction — headings, voice, and terminology in the new content already matched the surrounding files.

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Project	Status	Preview	Updated (UTC)
x-corp	🟢 Ready	View Preview	Jun 3, 2026, 10:10 PM

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