for some reason no link in my R markdowns (rmd) is formatted blue. knitting the simple rmd below to pdf is leaving the text color black. only when hovering over it does one realize that it's actually a link. knitting it to html will make the link blue. of course I can use a latex wrapper but I wonder why that is?
sessionInfo() R version 3.3.0 (2016-05-03) Platform: x86_64-w64-mingw32/x64 (64-bit) Running under: Windows 7 x64 (build 7601) Service Pack 1 loaded via a namespace (and not attached): knitr_1.15
RStudio 1.0.44
---
title: "R Notebook"
output:
pdf_document: default
html_notebook: default
---
```{r, echo=F}
# tex / pandoc options for pdf creation
x <- Sys.getenv("PATH")
y <- paste(x, "E:\\miktex\\miktex\\bin", sep=";")
Sys.setenv(PATH = y)
```
[link](www.rstudio.com)