fix broken docs for responsive media block
fix broken docs for responsive media block

- This needs to be reworked to fit with bs grids, but at least getting the docs working for now

Signed-off-by: Cameron Cundiff <825e9cb24c5b96758af19496ae9587ca93b85f98@pivotallabs.com>

CanopyCloud/pivotal-ui,pivotal-cf/pivotal-ui,sjolicoeur/pivotal-ui,sjolicoeur/pivotal-ui,pivotal-cf/pivotal-ui,CanopyCloud/pivotal-ui,pivotal-cf/pivotal-ui,npm/pivotal-ui,npm/pivotal-ui,npm/pivotal-ui,sjolicoeur/pivotal-ui,sjolicoeur/pivotal-ui,CanopyCloud/pivotal-ui