Configure default branch

[nathonius]

Obviously I can just go into the plugin and customize my version of it, but it would be neat to be able to override the default branch (master, currently) with a different one. As an example, for my personal projects i tend to use main these days, but at work we use development.

[elstgav]

Great point! Admittedly, I ran into this recently as well (and changed locally). Looks like it should be fairly simple to infer the default branch name too.