The title says it all, how do I control line and paragraph spacing in Rmarkdown?
Essentially I want to have different line spacing for different paragraphs - some single spaced and some double spaced (or preferably one-and-a-half spacing), but Rmarkdown doesn't seem to recognize \singlespacing doublespacing or \onehalfspacing that I find elsewhere for LaTeX documents.
For paragraph spacing, I'm able to use \setlength{\parskip}{-1em} to get no spacing between paragraphs, but this just seems wrong with -1em