"squash" melds the commit into the previous one (the one in the line before)
https://thoughtbot.com/blog/git-interactive-rebase-squash-amend-rewriting-history

https://dev.to/erikaheidi/pick-squash-drop-rebase-comic-607

https://medium.com/@slamflipstrom/a-beginners-guide-to-squashing-commits-with-git-rebase-8185cf6e62ec

https://blog.carbonfive.com/always-squash-and-rebase-your-git-commits/

https://medium.com/@daendersby/til-git-rebasing-removing-rage-commits-4b5c42e7af3a

https://www.atlassian.com/git/tutorials/rewriting-history/git-rebase