Rename default branch from `master`

[BenjaminEHowe]

Could we consider renaming the default branch from master to something more inclusive? It appears that most providers have chosen to change their default from master to main (e.g. GitHub, GitLab). Once deleted, I believe references to master will redirect to main, reducing the pain caused by this transition. Nevertheless, I appreciate this is a non-trivial change.

[G2G2G2G]

"main" isn't inclusive for the same reason "master" isn't.. do you think calling someone your "main hoe" or "main man" is inclusive to others?