R: Vignettes and other documentation

# Vignettes and other documentation

## Vignettes from package 'writexl'

writexl::a-getting-started |  | Getting started with writexl | HTML | source | R code
writexl::b-formatting |  | Formatting cells | HTML | source | R code
writexl::c-worksheets-workbooks |  | Worksheets and workbooks | HTML | source | R code
writexl::d-charts-images |  | Charts and images | HTML | source | R code
writexl::e-formulas-and-more |  | Formulas, tables and the rest | HTML | source | R code
writexl::f-everything-at-once |  | Everything at once | HTML | source | R code