Fix SEO issues: rewrite generic page titles

[mintlify]

Summary

Rewrites 10 overly generic page titles (e.g. Filtering, Pagination, Rate Limits, Webhooks, Documentation) so search snippets clearly identify the product and topic.

Changes

• api/filtering.mdx → "Filtering Posts in the Marble API"
• api/pagination.mdx → "Paginating Marble API Responses"
• api/rate-limits.mdx → "Marble API Rate Limits and Backoff"
• api/types.mdx → "TypeScript Types for the Marble API"
• concepts/content-model.mdx → "Marble Content Model and Post Schema"
• features/custom-fields.mdx → "Custom Fields for Marble Posts"
• features/webhooks.mdx → "Marble Webhooks for Content Events"
• introduction.mdx → "Marble Headless CMS Documentation"
• recipes/code-highlighting.mdx → "Syntax Highlighting for Marble Posts"
• recipes/reading-time.mdx → "Reading Time for Marble Posts"

All titles remain under 60 characters. sidebarTitle values are untouched, so navigation labels do not change. Descriptions were already unique and within the 130–160 character target.

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Project	Deployment	Actions	Updated (UTC)
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1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
marble-app	Skipped		Aug 20, 2026 8:33pm

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