Add example of multi-dimensional property on the website

[Luthaf]

Following up with #150, we would need a nice example of multi-dimensional property to add to the existing set of example.

@cbenmahm would you have time to make such an example?

[cbenmahm]

I should have one that is almost ready, but first I was planning to fix a layout problem. They should be ready by next week

[Luthaf]

Ok, sounds good!