R: Vignettes and other documentation

# Vignettes and other documentation

## Vignettes from package 'grip'

grip::grip-examples |  | Getting Started with grip | HTML | source | R code
grip::grip-real-data |  | Choosing Layouts for Real Data | HTML | source | R code
grip::grip-trace-and-diagnostics |  | Tracing and Diagnosing Layouts | HTML | source | R code
grip::weighted-grip-intro |  | Weighted Graph Layouts with grip | HTML | source | R code