R: Vignettes and other documentation

# Vignettes and other documentation

## Vignettes from package 'rstan'

rstan::SBC |  | Simulation Based Calibration | HTML | source | R code
rstan::external |  | Interfacing with External C++ Code | HTML | source | R code
rstan::rstan |  | RStan | HTML | source | R code
rstan::stanfit-objects |  | stanfit objects | HTML | source | R code

## Other files in the doc directory

| fib.hpp
| rstan.bib
| schools.stan
| sinc.hpp