deletions | additions       diff --git a/figures/nature_screen_shot/caption.md b/figures/nature_screen_shot/caption.md  index 66af15d..da08dd0 100644  --- a/figures/nature_screen_shot/caption.md  +++ b/figures/nature_screen_shot/caption.md 
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Screen shot of the first 3D PDF published in Nature _Nature_  in 2009. 2009 \cite{2009Natur.457...63G}.  A video demonstration of how users can interact with the figure is [on YouTube, here](https://www.youtube.com/watch?v=AEuCA22Eq1s).