1. Use ` ` pair to get special format of the content inside them.
2. Use double stars ** pair to get bold formatted content.
3. Use {% highlight csharp %} {% endhighlight %} to format code. There are quite a few types of language are supported.
4. Use {% raw %} {% endraw %} to only display common text content instead of execute the code inside them.
5. Use - to get a comment pattern.
6. Different number of # represents different level of title.
7. Treat user defined <!--more--> as the beginning of main content of the article. Before it is the abstract.
8. Use ![Myself]({{site.url}}/Images/Me.jpg "Optional title"){:height="150px"} to insert and resize an image. site.url means the base website address that can be defined in _config.yml like this: url: "https://hanhonglei.github.io".
9. Use[] pair to indicate a hyperlink, follow up a () pair with a website address inside it. Such as [Shooter](https://github.com/hanhonglei/Shooter)
10. You can produce a horizontal rule tag by placing three or more hyphens, asterisks, or underscores on a line by themselves. *** or ____

Resources:

1. Markdown Cheatsheet