R: Vignettes and other documentation

# Vignettes and other documentation

## Vignettes from package 'sp'

sp::CRS_warnings |  | Testing packages using CRS objects | HTML | source |
sp::retiring_rgdal_geos_1 |  | sp evolution status: examples of migration from retiring packages | HTML | source | R code
sp::sp_gallery |  | sp map gallery | HTML | source | R code
sp::csdacm |  | Customising spatial data classes and methods | PDF | source | R code
sp::intro_sp |  | sp: classes and methods for spatial data | PDF | source | R code