Changes in version 0.13.4                        

  - Fixed broken DOI in DESCRIPTION.

                       Changes in version 0.13.3                        

  - Added a NEWS.md file to track changes to the package.
  - Added a check for numeric input to interview_num column in the field
    notes spreadsheet.
  - Fixed columns with count of 0 still being drawn on plot_richness()
    plots (by omitting groups with zero counts before plotting).
  - Added examples of custom colours to plot_novelty() and
    plot_richness().
  - Added DOI link to the package's associated journal article in the
    Description.