You can install:
# install.packages("devtools") # if not installed
devtools::install_github("KeachMurakami/soroban")
devtools::session_info()
#> Session info --------------------------------------------------------------
#> setting value
#> version R version 3.3.1 (2016-06-21)
#> system x86_64, darwin13.4.0
#> ui X11
#> language (EN)
#> collate en_US.UTF-8
#> tz Asia/Tokyo
#> date 2017-12-15
#> Packages ------------------------------------------------------------------
#> package * version date source
#> backports 1.0.4 2016-10-24 cran (@1.0.4)
#> devtools 1.12.0 2016-06-24 CRAN (R 3.3.0)
#> digest 0.6.12 2017-01-27 cran (@0.6.12)
#> evaluate 0.10.1 2017-06-24 cran (@0.10.1)
#> htmltools 0.3.6 2017-04-28 cran (@0.3.6)
#> knitr 1.17 2017-08-10 cran (@1.17)
#> magrittr 1.5 2014-11-22 CRAN (R 3.3.1)
#> memoise 1.0.0 2016-01-29 CRAN (R 3.3.1)
#> Rcpp 0.12.14 2017-11-23 cran (@0.12.14)
#> rmarkdown 1.6 2017-06-15 CRAN (R 3.3.2)
#> rprojroot 1.2 2017-01-16 cran (@1.2)
#> stringi 1.1.5 2017-04-07 cran (@1.1.5)
#> stringr 1.2.0 2017-02-18 cran (@1.2.0)
#> withr 2.0.0 2017-08-08 Github (jimhester/withr@190d293)
#> yaml 2.1.14 2016-11-12 cran (@2.1.14)
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.