**GitHub’s superset of CommonMark [[CommonMark]] Markdown [[Markdown]]**
GFM is GitHub-Flavored [[Markdown]]. It is arguably the most popular example of [[Extended Markdown Syntax]].
It adds:
- Checkboxes using the `- [ ] ` syntax
- Callouts or "Alerts" - from which [[Obsidian Callouts]] derive their syntax, although Github has a smaller list:
- Weirdly these work, but don't show up in the spec?
```markdown
> [!NOTE]
> Useful information that users should know, even when skimming content.
> [!TIP]
> Helpful advice for doing things better or more easily.
> [!IMPORTANT]
> Key information users need to know to achieve their goal.
> [!WARNING]
> Urgent info that needs immediate user attention to avoid problems.
> [!CAUTION]
> Advises about risks or negative outcomes of certain actions.
```
- Tables
- Strikethru
- Auto-linking anything that's link-like
****
# More
## Source
- https://github.github.com/gfm/
## Related
- [[Extended Markdown Syntax]]
- [[Markdown]]
- [[Markdown Processers]]