markdownlint
A Node.js style checker and lint tool for Markdown/CommonMark files.
markdownlint-cli2
A fast, flexible, configuration-based command-line interface for linting Markdown/CommonMark files with the `markdownlint` library
concat-md
CLI and API to concatenate markdown files and modify as necessary.
eslint-plugin-md
An ESLint plugin that allows you to lint markdown code in your *.md files.
markdown-toc-gen
Generating and updating table of contents in Markdown files which conform with prettier.
