This is the first CRAN release of the package. The package has just passed peer-review through rOpenSci. It is published in a fully functional state.
Added new vignette with examples from each of the keys (references).
Added additional tests and code cleanup.
Added new key: leucht2020 (https://doi.org/10.1176/appi.ajp.2019.19010034)
Added additional tests to compare results to spreadsheet by Leucht et al. with similar purpose.