R: Vignettes and other documentation

# Vignettes and other documentation

## Vignettes from package 'sftrack'

sftrack::sftrack1_overview |  | 1. Overview of sftrack | HTML | source | R code
sftrack::sftrack2_reading |  | 2. Reading in an sftrack | HTML | source | R code
sftrack::sftrack3_workingwith |  | 3. Structure of sftrack/sftraj objects | HTML | source | R code
sftrack::sftrack4_groups |  | 4. Fantastic Groups and how to use them | HTML | source | R code
sftrack::sftrack5_spatial |  | 5. Getting Spatial with sftrack | HTML | source | R code