To cite renderthis in publications use:

  Helveston, John Paul and Aden-Buie, Garrick (2021). renderthis:
  Render slides to different formats.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {renderthis: Render slides to different formats.},
    author = {{Helveston} and John Paul and {Aden-Buie} and {Garrick}},
    year = {2021},
    note = {R package version 0.0.1},
    url = {https://jhelvy.github.io/renderthis/},
  }