R: Vignettes and other documentation

# Vignettes and other documentation

## Vignettes from package 'ctxR'

ctxR::Bioactivity |  | 3. Bioactivity | HTML | source | R code
ctxR::Chemical |  | 2. Chemical | HTML | source | R code
ctxR::Exposure |  | 4. Exposure | HTML | source | R code
ctxR::Hazard |  | 5. Hazard | HTML | source | R code
ctxR::Introduction |  | 1. Getting started with ctxR: Introduction Vignette | HTML | source | R code