Mainmaster

To address the REALLY annoying master/main issue

https://www.r-bloggers.com/2020/07/5-steps-to-change-github-default-branch-from-master-to-main/

and eventually you need to

git pull origin master --allow-unrelated-histories

(https://www.educative.io/edpresso/the-fatal-refusing-to-merge-unrelated-histories-git-error)