add examples for variable grids

[joachim-n]

I'm reading the docs at http://zengrids.com/help/ and really confused about how to make a fluid grid from a set of UL/LIs.

Am I understanding correctly that I need a different @include zen-grid-item on each grid item? If so, how can this work when creating an arbitrary number of items with Views?

zen-grid-flow-item says it doesn't float items, so I'm not sure how to use that either.

I am surely missing something, but not managing to understand how to do this from reading the docs!