remark-lint-heading-increment

A remark-lint rule that warns when heading levels increase by more than one level at a time (e.g., from h1 to h3). This helps enforce accessible heading hierarchies as recommended by HTML accessibility guidelines, where headings should increment by one level. Part of the remark-lint ecosystem, current stable version is 4.0.1 (ESM-only since v2, ships TypeScript types). Released as part of the remark-lint monorepo with regular updates. No options needed. Integrates with remark-lint presets like remark-preset-lint-markdown-style-guide.