R: Vignettes and other documentation

# Vignettes and other documentation

## Vignettes from package 'gridExtra'

gridExtra::arrangeGrob |  | arrangeGrob: arranging multiple grobs on a page | HTML | source | R code
gridExtra::gtable |  | (Unofficial) overview of gtable | HTML | source | R code
gridExtra::ngonGrob |  | ngonGrob: regular polygons and ellipses in grid graphics | HTML | source | R code
gridExtra::tableGrob |  | tableGrob: displaying tables as grid graphics | HTML | source | R code