Markdown Cheat Sheet_

# Markdown
A by-example reference. Each fenced block shows exactly what you type.

## Headings
```markdown
# H1
## H2
### H3        (down to ###### H6)

Alt H1
======
Alt H2
------
```

## Emphasis & inline
```markdown
*italic*  or  _italic_
**bold**  or  __bold__
***bold italic***
~~strikethrough~~
`inline code`  and escaped backtick: \`
```

## Lists
```markdown
- unordered      (also * or +)
  - nested two spaces
1. ordered
2. next   (numbers needn't be sequential)
- [ ] todo
- [x] done
```

## Links & images
```markdown
[text](https://example.com "title")
<https://example.com>           autolink
[ref][1]   ...   [1]: https://example.com
![alt text](turtle.png "tooltip")
[![alt](img.png)](https://link)   clickable image
```

## Code
```markdown
Inline: wrap in single backticks  ->  `code`
Block:  indent four spaces, OR fence with three backticks and
        name the language (e.g. python) for syntax highlighting.
```

## Blockquotes
```markdown
> A wise turtle once said…
>> nested quote
> **Note:** quotes can hold other Markdown.
```

## Tables
```markdown
| Left | Center | Right |
| :--- | :----: | ----: |
| a    |   b    |     c |
```

## Rules, breaks & escapes
```markdown
---             horizontal rule (or *** / ___)
two spaces at line end  ->  hard line break
\*not italic\*  ->  backslash escapes a special char
```

## GitHub extras
```markdown
- [ ] task lists render as checkboxes
Footnote.[^1]    [^1]: defined anywhere.
> [!NOTE] / [!WARNING]   GitHub callout blocks
Auto: #123 issues, @mentions, :tada: emoji shortcodes
```