This is an R Markdown document. Markdown is a simple formatting syntax for authoring HTML, PDF, and MS Word documents. For more details on using R Markdown see http://rmarkdown.rstudio.com.
When you click the Knit button a document will be generated that includes both content as well as the output of any embedded R code chunks within the document. You can embed an R code chunk like this:
##url<-"https://exploratory.io/viz/5875507331094579/9539455442067726?cb=1494854570984"
##knitr::include_url(url, height = "400px")