Simple Markdown 2

• Link

[I'm an inline-style link](https://www.google.com)
[I'm an inline-style link with title](https://www.google.com "Google's Homepage")

I'm an inline-style link

I'm an inline-style link with title

• Code

    git clone url

• Image

Inline-style:
![alt text](development-r.png "Logo Title Text 1")

Reference-style:
![alt text][logo]

[logo]: http://www.r-project.org/Rlogo.jpg "Logo Title Text 2"

Inline-style:

Reference-style:

• Youtube

  Create a image and link to the video

補充: 高手可以直接 embed ~_~