To cite package ‘datalegreyar’ in publications use:

  Tanaka E (2018). _datalegreyar: A tool to easily insert datalegreya
  for html output._. R package version 0.1.0,
  <https://github.com/emitanaka/datalegreyar>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {datalegreyar: A tool to easily insert datalegreya for html output.},
    author = {Emi Tanaka},
    year = {2018},
    note = {R package version 0.1.0},
    url = {https://github.com/emitanaka/datalegreyar},
  }