Update README.md

Markdown cheat sheet



Format Text

Headers
# This is an <h1> tag
## This is an <h2> tag
###### This is an <h6> tag

Text styles
*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
* Item 1
* Item 2
  * Item 2a
  * Item 2b

Ordered
1. Item 1
2. Item 2
3. Item 3
   * Item 3a
   * Item 3b


Miscellaneous

Images
![GitHub Logo](/images/logo.png)
Format: ![Alt Text](url)


Links
http://github.com - automatic!
[GitHub](http://github.com)

Blockquotes
As Kanye West said:

> We're living the future so
> the present is our past.


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GitHub Flavored Markdown



Syntax highlighting with GFM
```javascript
function fancyAlert(arg) {
  if(arg) {
    $.facebox({div:'#foo'})
  }
}
```


Or, indent your code 4 spaces
Here is a Python code example
without syntax highlighting:

    def foo:
      if not bar:
        return true

Inline code for comments
I think you should use an
`<addr>` element here instead.


Task Lists
- [ ] a task list item
- [ ] list syntax required
- [ ] normal **formatting**,
      @mentions, #1234 refs
- [ ] incomplete
- [x] completed