Allow merging of two Git reoisitories

git-merge-repos.md

git remote add -f repo-a git@github.com:someone/repo-a.git
git merge repo-a/main --allow-unrelated-histories

See: https://medium.com/altcampus/how-to-merge-two-or-multiple-git-repositories-into-one-9f8a5209913f

git-show-committers.md

git log --pretty=fuller
git show COMMIT__HASH --pretty=fuller

See: https://stackoverflow.com/a/26365741/1006850