R: Vignettes and other documentation

# Vignettes and other documentation

## Vignettes from package 'openxlsx2'

openxlsx2::Update-from-openxlsx |  | Upgrade from openxlsx | HTML | source | R code
openxlsx2::conditional-formatting |  | Add conditional formatting to a workbook | HTML | source | R code
openxlsx2::openxlsx2 |  | openxlsx2 basic manual | HTML | source | R code
openxlsx2::openxlsx2_charts_manual |  | Add charts to a workbook | HTML | source | R code
openxlsx2::openxlsx2_formulas_manual |  | Add formulas to a workbook | HTML | source | R code
openxlsx2::openxlsx2_read_to_df |  | openxlsx2 read to data frame | HTML | source | R code
openxlsx2::openxlsx2_style_manual |  | Add styling to a workbook | HTML | source | R code