Update README.md

README.md

@@ -55,12 +55,17 @@ update.packages(ask = FALSE, checkBuilt = TRUE)
 
 # packages to install for the course
 pkgs <- c("tidyverse", "gratia", "ggplot2",
-          "marginaleffects", "janitor", "mvgam")
+          "marginaleffects", "janitor"
 
 # install packages
 install.packages(pkgs)
 ```
 
+We will be using the latest development version of `mvgam`, as it has several nice features that haven't quite made it to **CRAN** yet. You can install this version using:
+```r
+devtools::install_github("nicholasjclark/mvgam")
+```
+
 ### INSTALLING AND CHECKING STAN
 When working in R, there are two primary interfaces we can use to fit models with Stan (`rstan` and `CmdStan`). Either interface will work, however it is highly recommended that you use the `Cmdstan` backend, with the `{cmdstanr}` interface, rather than using `{rstan}`. More care, however, needs to be taken to ensure you have an up to date version of Stan. **For all `mvgam` functionalities to work properly, please ensure you have at least version 2.29 of Stan installed**. The GitHub development versions of `rstan` and `CmdStan` are currently several versions ahead of this, and both of these development versions are stable. The exact version you have installed can be checked using either `rstan::stan_version()` or `cmdstanr::cmdstan_version()`