Markdown syntax guide

Philosophy

Markdown is intended to be as easy-to-read and easy-to-write as is feasible.
Readability, however, is emphasized above all else. A Markdown-formatted document should be publishable as-is, as plain text, without looking like it's been marked up with tags or formatting instructions.
Markdown's syntax is intended for one purpose: to be used as a format for writing for the web.

Headers

Example:

# This is an `<h1>` tag
## This is an `<h2>` tag
###### This is an `<h6>` tag

Result:

This is an <h1> tag

This is an <h2> tag

This is an <h6> tag

Emphasis

Example:

*This text will be italic*
_This will also be italic_

**This text will be bold**
__This will also be bold__

*You **can** combine them*

Result:

This text will be italic
This will also be italic

This text will be bold
This will also be bold

*You can combine them*

Lists

Unordered

Example:

* Item 1 unordered list `* + SPACE`
* Item 2
* Item 2a unordered list `TAB + * + SPACE`
* Item 2b

Result:

• Item 1 unordered list * + SPACE
• Item 2
• Item 2a unordered list TAB + * + SPACE
• Item 2b

Ordered

Example:

1. Item 1 ordered list `Number + . + SPACE`
2. Item 2 
3. Item 3
1. Item 3a ordered list `TAB + Number + . + SPACE`
2. Item 3b

Result:

1. Item 1 ordered list Number + . + SPACE
2. Item 2
3. Item 3
4. Item 3a ordered list TAB + Number + . + SPACE
5. Item 3b

Task lists

Example:

- [ ] task one not finish `- + SPACE + [ ]`
- [x] task two finished `- + SPACE + [x]`

Result:

• task one not finish - + SPACE + [ ]
• task two finished - + SPACE + [x]

Images

Example:

![GitHub set up](https://help.github.com/assets/images/site/set-up-git.gif)
Format: ![Alt Text](url)

Result:

Links

Example:

email <example@example.com>
[GitHub](http://github.com)
autolink  <http://www.github.com/>

Result:

An email example@example.com link.
GitHub
Automatic linking for URLs
Any URL (like http://www.github.com/) will be automatically converted into a clickable link.

Blockquotes

Example:

As Kanye West said:
> We're living the future so
> the present is our past.

Result:

As Kanye West said:

We're living the future so
the present is our past.

Inline code

Example:

I think you should use an
`<addr>` `code` element here instead.

Result:

I think you should use an
<addr> code element here instead.

Multi-line code

Example:

```js
function fancyAlert(arg) {
    if(arg) {
        $.facebox({div:'#foo'})
    }

}
```

Result:

function fancyAlert(arg) {
    if(arg) {
        $.facebox({div:'#foo'})
    }

}

Sequence and Flow chart

Example:

```sequence
Andrew->China: Says Hello
Note right of China: China thinks about it
China-->Andrew: How are you?
Andrew->>China: I am good thanks!
```

```flow
st=>start: Start:>http://www.google.com[blank]
e=>end:>http://www.google.com
op1=>operation: My Operation
sub1=>subroutine: My Subroutine
cond=>condition: Yes
or No?:>http://www.google.com
io=>inputoutput: catch something...

st->op1->cond
cond(yes)->io->e
cond(no)->sub1(right)->op1
```

Result:

Andrew->China: Says Hello
Note right of China: China thinks about it
China-->Andrew: How are you?
Andrew->>China: I am good thanks!

st=>start: Start:>http://www.google.com[blank]
e=>end:>http://www.google.com
op1=>operation: My Operation
sub1=>subroutine: My Subroutine
cond=>condition: Yes
or No?:>http://www.google.com
io=>inputoutput: catch something...

st->op1->cond
cond(yes)->io->e
cond(no)->sub1(right)->op1

More info: http://bramp.github.io/js-sequence-diagrams/, http://adrai.github.io/flowchart.js/

Tables

Example:

First Header | Second Header
------------ | -------------
Content from cell 1 | Content from cell 2
Content in the first column | Content in the second column

You can create tables by assembling a list of words and dividing them with hyphens - (for the first row), and then separating each column with a pipe |:

Result:

First Header	Second Header
Content from cell 1	Content from cell 2
Content in the first column	Content in the second column

Strikethrough

Example:

(like this)

Result:

Any word wrapped with two tildes (like this) will appear crossed out.

Horizontal Rules

Following lines will produce a horizontal rule:

***

*****

- - -

Result:

---

---

---

LaTex

Use double US dollars sign pair for Block level Math formula, and one US dollar sign pair for Inline Level.

For example this is a Block level $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}$$ formula, and this is an inline Level $x = {-b \pm \sqrt{b^2-4ac} \over 2a}$ formula.

\\[ \frac{1}{\Bigl(\sqrt{\phi \sqrt{5}}-\phi\Bigr) e^{\frac25 \pi}} =
1+\frac{e^{-2\pi}} {1+\frac{e^{-4\pi}} {1+\frac{e^{-6\pi}}
{1+\frac{e^{-8\pi}} {1+\ldots} } } } \\]

Result:

For example this is a Block level \[x = {-b \pm \sqrt{b^2-4ac} \over 2a}\] formula, and this is an inline Level \(x = {-b \pm \sqrt{b^2-4ac} \over 2a}\) formula.

\[ \frac{1}{\Bigl(\sqrt{\phi \sqrt{5}}-\phi\Bigr) e^{\frac25 \pi}} =
1+\frac{e^{-2\pi}} {1+\frac{e^{-4\pi}} {1+\frac{e^{-6\pi}}
{1+\frac{e^{-8\pi}} {1+\ldots} } } } \]

Footnote

Example:

This is a footnote:[^sample_footnote]

Result:

This is a footnote:¹