Basic R lab

[avahoffman]

Had some awkardness with the rmd file - like people putting their code in all sorts of places... I wonder if for next time we want to just use a script for basic R? or idk there is probably a better way - maybe we could just go over the chunks a tiny bit?

We could just put some questions in an html file/page. Have a key for people but no download required. Just work in the console.