To cite text in publications use:

Kjell O, Schwartz SG&A (In progress). “text: An R-package for Analyzing and Visualizing Human Language Using Natural Language Processing and Deep Learning.” Psychology, https://www.r-text.org/.

Corresponding BibTeX entry:

  @Unpublished{,
    note = {Psychology},
    title = {text: An R-package for Analyzing and Visualizing Human
      Language Using Natural Language Processing and Deep Learning},
    author = {Oscar Kjell and Salvatore Giorgi & Andrew Schwartz},
    year = {In progress},
    volume = {0},
    number = {0},
    pages = {0},
    url = {https://www.r-text.org/},
  }