pelicanRMD is a rmarkdown document template for RStudio that plays nicely with the pelican static site generator. pelicanRMD borrows from code written by @wilsonfreitas for his rmd_reader plugin.
devtools::install_github("almartin82/pelicanRMD")
Once you've installed, you'll see pelicanRMD listed as an option when you choose File > New File > R Markdown > From Template.