Danni’s teaching materials from BSTA 670 is not hyperlinked

[calebae]

Where is Danni's teaching materials from BSTA 670?

pennsive.github.io/rpackages.markdown

Line 13 in 6f3c5ef

**Note**: These instructions are blatantly stolen from [Hilary Parker's article](https://hilaryparker.com/2014/04/29/writing-an-r-package-from-scratch/), [Karl Broman's article](https://kbroman.org/pkg_primer/), [Andrew's slides](https://andy1764.github.io/Making%20an%20R%20Package/Making-an-R-Package.html), and Danni's teaching materials from BSTA 670. Everything was tested on R version 4.1.3.