R: Vignettes and other documentation

# Vignettes and other documentation

## Vignettes from package 'bs4Dash'

bs4Dash::bs4Dash |  | bs4Dash | HTML | source | R code
bs4Dash::css-preloader |  | CSS preloaders | HTML | source | R code
bs4Dash::extra-elements |  | Extra Elements | HTML | source | R code
bs4Dash::improved-boxes |  | Improved boxes | HTML | source | R code
bs4Dash::more-skins |  | Improved Skins | HTML | source | R code
bs4Dash::step-by-step |  | How to start? | HTML | source | R code