R resources from mlr-wp

What can we link to from

https://institute-and-faculty-of-actuaries.github.io/mlr-blog/

Items we could consider:
* https://institute-and-faculty-of-actuaries.github.io/mlr-blog/post/intro-to-r/
* https://institute-and-faculty-of-actuaries.github.io/mlr-blog/post/tidyverse/
* https://institute-and-faculty-of-actuaries.github.io/mlr-blog/post/datatable/
* https://institute-and-faculty-of-actuaries.github.io/mlr-blog/post/f-intro_glm_gam_xgboost/

But only if it fits well with other content - no need to duplicate otherwise.