You can install useRcausal2020 from this repository with
install.packages("remotes")
remotes::install_github("malcolmbarrett/useRcausal2020")
Once you’ve installed the package, install the workshop with
useRcausal2020::install_workshop("path/to/your/computer")
Replace “path/to/your/computer” with where on your computer you want the workshop installed.