R: Vignettes and other documentation

# Vignettes and other documentation

## Vignettes from package 'newmark'

newmark::dynamic-site-response |  | Dynamic site response: fundamental period and stiffness profile | HTML | source | R code
newmark::ensemble-formulation |  | Newmark ensemble formulation | HTML | source | R code
newmark::newmark-quickstart |  | Getting started with newmark | HTML | source | R code
newmark::pipeline |  | Full pipeline overview | HTML | source | R code