markdownlint

Ensures style consistency and correctness in Markdown files using markdownlint-cli2. Use whenever creating, updating, editing, or reviewing any Markdown (.md) file. Triggers on any task that creates or modifies .md files, including README.md, CHANGELOG.md, documentation, or any file with a .md extension. Also triggers when the user mentions markdown, linting, markdown formatting, markdown style, or markdownlint. Always run the linter after writing or editing markdown content — do not skip this step.