#markdown

Extras GitHub adds on top of standard Markdown: tables, task lists, alerts, footnotes, collapsible sections, Mermaid diagrams, mentions and auto-links. Most also work on GitLab and in VS Code.

Enforce Markdown standards automatically: markdownlint catches rule violations, Prettier fixes formatting, and a CI step or pre-commit hook keeps every .md file consistent. Includes YAML frontmatter basics.

Every core Markdown element (CommonMark) with its syntax: headings, emphasis, lists, links, images, code, quotes, tables and escaping. Save files as .md, UTF-8, LF line endings.

The rules that keep .md files consistent, portable and lint-clean: file naming, heading structure, spacing, lists, links, code fences and line length. Based on CommonMark, GFM and markdownlint defaults.

A README answers, in order: what is this, why should I care, how do I run it, how do I use it, how do I contribute. A reusable template and the order to write it in.