Added example using data attributes to specify function options

Hi,

I'm working on a project where I need to add multiple times on one page. I thought it would be nice if we can specify the options at the DOM and make the jquery work each time. I made the example here.  This is using the jQuery Data, so it does require jquery 1.4.3 or greater. 

This is my first time ever contributing to an open source project. If I'm missing something, please let me know.

I hope you like it.
Jorge