My favorite references on statistics get to an idea that I think you will be inclined to emphasize: DATA is what matters in statistics, more than mathematical manipulation. See what you think about these, and best wishes for further revisions of your interesting online guide.

http://statland.org/MAAFIXED.PDF

The first link is a BEAUTIFUL and thought-provoking discussion of what's dangerous about having a new mathematics professor choose the statistics textbooks for an introductory college class in statistics, with advice on what to look for in statistics textbooks.

http://escholarship.org/uc/item/6hb3k0nz

The second link is by a very famous statistician, with discussion of how the statistics curriculum could be revised to better emphasize the most important ideas.

Put the key ideas from these two resources in your own words, and you will have a good guide to programmers about how to think about statistics.