Fix duplicate Tailwind class and broken frontmatter quote

[mintlify]

Summary

Two formatting issues found while scanning all MDX files for spelling errors, grammatical mistakes, and broken formatting.

Frontmatter

• optimize/feedback.mdx — Missing opening quote in keywords array. The string thumbs rating" was missing its opening ", leaving the YAML array malformed.

Markdown / JSX

• customize/themes.mdx — Duplicate px-4 class in a className attribute (px-4 px-4 → px-4).

Notes

• Scanned ~220 English MDX files for: duplicate words, common misspellings, unclosed bold/italic markers, broken link syntax, unbalanced JSX components, malformed frontmatter (unclosed quotes, missing delimiters), and double spaces in prose.
• Skipped non-issues: tag-balance false positives in self-closing multi-line <Card /> elements, intentional escaped backticks in create/code.mdx, and intentional ``` literals in changelog.mdx.
• No spelling or grammar errors found in prose content.

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Note

Low Risk
Low risk: documentation-only formatting fixes that remove a duplicate CSS utility and repair broken YAML frontmatter, with no runtime logic changes.

Overview
Fixes two MDX formatting issues: removes a duplicate px-4 Tailwind class in customize/themes.mdx, and corrects a malformed keywords string in the YAML frontmatter of optimize/feedback.mdx so the frontmatter parses correctly.

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Project	Status	Preview	Updated (UTC)
mintlify	🔴 Failed	–	May 2, 2026, 3:12 AM