Rename master branch to something less offensive

[femperi]

Overview

The use of the word "master" can be triggering to some individuals, if this project is really about "no harm" this repository should set an example.

Proposed Resolution

Rename the master branch to something less triggering like, head, edge or main.

[jeznag]

@femperi can you post links to a case for removing master? I've seen compelling arguments for removing master + slave but master on its own doesn't necessarily have negative connotations. One can master a skill or master one's weaknesses for example.

[femperi]

Python, Redis etc have all removed the term as it's incredibly racist towards people of color.
Also I've managed to land the change in Contributors Covenant, an inclusive project.

[jeznag]

@femperi wasn't that more about removing slave?

[chrisjensen]

As someone not affected by slavery personally or in my family history, I'm not in a position to comment on how big a deal this is, it's a simple change to make so i'm happy to err on the side of caution and grant the change.

[f1yn]

Hey @femperi, just wanted to let you know that we've changed the default branch to publish