Great, it works. :smile: 

Try TODO List:
- [] @JavierJia finish this TODO list
- [] @jakebiesinger clean up code
- [] @Nan-Zhang please fix this issue #4 

```ruby
require 'redcarpet'
markdown = Redcarpet.new("Hello World!")
puts markdown.to_html
```
Here's an example:

```
function test() {
  console.log("notice the blank line before this function?");
}
```
~~commend out~~