v1.7.7 Add Widget MarkDown

= MARKDOWN =
* Prefer writing with MarkDown Syntax ?
* See... http://daringfireball.net/projects/markdown/syntax
`
[part widget="mark"]
# This is an H1

## This is an H2

###### This is an H6

1.  Bird
2.  McHale
3.  Parish

*   Red
*   Green
*   Blue

This is [an example](http://example.com/ "Title") inline link.

[This link](http://example.net/) has no title attribute.

![Alt text](/path/to/img.jpg)

![Alt text](/path/to/img.jpg "Optional title")

*single asterisks*

_single underscores_

**double asterisks**

__double underscores__

[/part]