title: showing vignettes link upon building and reloading an R package
body: <p>I have created a <a href="http://r-pkgs.had.co.nz/vignettes.html" rel="nofollow">vigentte</a> folder for an R package I am developing by running the code <code>devtools::use_vignette("my-vignette")</code>. I am using <strong>Rmarkdown</strong> and <strong>knitr</strong> packages.</p>
  
  <p>When I build &amp; reload the package, I don't get a hyperlink for the title of the Rmarkdown file (which contains the long-form documentation of the package) in the documentation page of the package. I do get hyperlinks for the DESCRIPTION file of the package as well as the help pages of the documented functions but not the hyperlink that should direct people to the Rmarkdown document. I am wondering why and what should I do to get a hperlink for the long-form documentation of the package in a similar way that I get it for the help pages for the functions used in the package?</p>