How to render?

[jrounds]

As someone new to markdown it wasn't clear what render() markdown call to use to (and related markdown usage) to generate portable html files for sharing. The output of metric graphics was as expected when generated from within R, but the moment I went to render I had success but ugly graphics. I think I used render inappropriately and the metricsgraphics doesn't have an example to steer me appropriately in that usecase.