I wonder if iris supports markdown. Let's see.

# Markdown Feature Showcase

Paste this into any Markdown-capable tool to see what it supports.

---

## 1. Headings

# H1 Heading

## H2 Heading

### H3 Heading

#### H4 Heading

##### H5 Heading

###### H6 Heading

---

## 2. Text Styles

Regular text, with **bold**, *italic*, and ***bold italic***.

You can also use __bold__ and _italic_.

Strikethrough: ~~this text is crossed out~~.

Superscript: X^2^ and subscript: H~2~O (some tools support this).

---

## 3. Lists

### Unordered

- Item A

- Item B

- Nested item B.1

- Nested item B.2

- Item C

### Ordered

1. First

2. Second

3. Third

1. Third-A

2. Third-B

### Task List

- [ ] Unchecked task

- [x] Checked task

- [ ] Another unchecked task

---

## 4. Links & Images

Inline link: [OpenAI](https://openai.com)

Reference-style link: [Search Engine][search]

[search]: https://www.google.com "Google Search"

Autolink: <https://example.com>

Image (if supported):


---

## 5. Code

Inline code: `console.log("hello");`

### Indented Code Block

// Indented code block

function greet(name) {

return "Hello, " + name + "!";

}

### Fenced Code Block (using ~~~)

~~~js

// Fenced code block with language hint

const nums = [1, 2, 3];

console.log(nums.map(n => n * 2));

~~~

---

## 6. Blockquotes

> This is a blockquote.

>

> It can span multiple lines.

> Nested blockquote:

> > Inner level

---

## 7. Tables

| Column A | Column B | Column C |

|---------:|:--------:|---------|

| 1 | middle | left |

| 2 | text | more |

| 3 | here | data |

Alignment: right, center, left.

---

## 8. Horizontal Rules

---

***

___

---

## 9. Footnotes

Here is a sentence with a footnote reference.[^1]

Here is another reference in the same text.[^another]

[^1]: This is the first footnote.

[^another]: This is another footnote definition.

---

## 10. Definition List (extended Markdown)

Term 1

: Definition for term 1.

Term 2

: First line of definition.

: Second line of definition.

---

## 11. Inline HTML

---

## 12. Math (if supported)

Inline math: $E = mc^2$

Block math:

$$

\int_{0}^{\pi} \sin(x)\,dx = 2

$$

---

## 13. Miscellaneous

Emoji: 😄 🎉 ✅

Escaped characters: \*not italic\* and \_not italic\_.

End of test document.