* Update program.Rmd Book links do not work as of now. I replaced the links that can direct viewers to the right sites! * Link to online versions Co-authored-by: Mine Çetinkaya-Rundel <cetinkaya.mine@gmail.com>
* Update communicate-plots.Rmd Updated the ggplot2 book link. * Fix URLs Co-authored-by: Mine Çetinkaya-Rundel <cetinkaya.mine@gmail.com>
