To cite package ‘hermione’ in publications use:

  Bhatia S, Dighe A, Ainslie K (2020). _hermione: Robust estimation of
  COVID-19 Serial Interval_. R package version 1.0.0,
  <https://github.com/mrc-ide/hermione>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {hermione: Robust estimation of COVID-19 Serial Interval},
    author = {Sangeeta Bhatia and Amy Dighe and Kylie E C Ainslie},
    year = {2020},
    note = {R package version 1.0.0},
    url = {https://github.com/mrc-ide/hermione},
  }