原文: https://commonmark.org/help/
还有一个在线学习的: https://commonmark.org/help/tutorial/

Markdown is a simple way to format text that looks great on any device. It doesn’t do anything fancy like change the font size, color, or type — just the essentials, using keyboard symbols you already know.

Type Or … to Get
*Italic* _Italic_ Italic
**Bold** __Bold__ Bold
# Heading 1 Heading 1
=========

Heading 1

## Heading 2 Heading 2
---------

Heading 2

[Link](http://a.com) [Link][1]

[1]: http://b.org
Link
![Image](http://url/a.png) ![Image][1]

[1]: http://url/b.jpg
Markdown
> Blockquote  
Blockquote

* List
* List
* List

- List
- List
- List

  • List
  • List
  • List

1. One
2. Two
3. Three

1) One
2) Two
3) Three

  1. One
  2. Two
  3. Three
Horizontal Rule

---
Horizontal Rule

***
Horizontal Rule
`Inline code` with backticks   Inline code with backticks
```
# code block
print '3 backticks or'
print 'indent 4 spaces'
```
····# code block
····print '3 backticks or'
····print 'indent 4 spaces'
# code block
print '3 backticks or'
print 'indent 4 spaces'

Ghost 的 Markdown 及快捷键

原文: https://docs.ghost.org/faq/using-the-editor/

Result Markdown Shortcut
Bold **text** / __text__ Ctrl/⌘ + B
Emphasize *text* Ctrl/⌘ + I
Strike-through ~~text~~ Ctrl + Alt + U
Testtext ^supertext^
Textsubtext ~subtext~
Link [title](http://) Ctrl/⌘ + K
Inline Code `code` Ctrl/⌘ + Shift + K
Image ![alt](http://) Ctrl/⌘ + Shift + I
List * item Ctrl + L
Ordered List 1. item Ctrl/⌘ + Alt + L
Blockquote > quote Ctrl + Q
Highlight
==Highlight==
H1 # Heading  
H2 ## Heading Ctrl/⌘ + H
H3 ### Heading Ctrl/⌘ + H (x2)