Here you find my 5 slides (inclusive of the title slide) concerning my app. After an initial attempt with RStudio I settled for Slidify because I feel it gives me more control.
The presentation can be found at http://anfe67.github.io/DevDataProductsPres/, in the gh-pages branch of this repository.
It includes 2 slides with code, one that shows the clean up of the dataset and the other that makes a plot similar to the Shiny app that I wrote.