GitHub Flavored Markdown: Task Lists and Mermaid
Use GitHub Flavored Markdown features: task lists, @mentions, alerts, footnotes, collapsed sections, and Mermaid diagram embedding.
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Tags: markdown, github, documentation
GitHub Flavored Markdown: Task Lists, Alerts, Footnotes, and Mermaid GitHub Flavored Markdown (GFM) is a strict superset of CommonMark. GitHub published the GFM spec in 2017 to formalize the extensions GitHub had been rendering for years. Most of those extensions are now supported across GitLab, VS Code, Obsidian, and many static site generators — making GFM essentially the de facto extended Markdown standard for developers. This guide covers the GFM-specific features that go beyond CommonMark and shows where each one is (and isn't) supported. --- Task Lists Task lists are rendered as checkboxes in issues, pull requests, and files on GitHub: The marker creates a checked checkbox; creates an unchecked one. In GitHub issues and PRs, these checkboxes are interactive — clicking them updates…
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