R: Vignettes and other documentation

# Vignettes and other documentation

## Vignettes from package 'PrettyCols'

PrettyCols::available-palettes |  | available-palettes | HTML | source | R code
PrettyCols::colourblind-friendly-palettes |  | colourblind-friendly-palettes | HTML | source | R code
PrettyCols::using-with-ggplot2 |  | using-with-ggplot2 | HTML | source | R code
PrettyCols::viewing-palettes |  | viewing-palettes | HTML | source | R code