GitHub default branch should be main not master

[zengmao]

When generating a new package folder interactively, you need to manually change the default branch from master to main to comply with GitHub's current default (the latter). This needs to be updated.

[gdalle]

I think PkgTemplates is doing everything it can on this side:

PkgTemplates.jl/src/plugins/git.jl

Lines 1 to 15 in 8b857be

	const DEFAULT_DEFAULT_BRANCH = "main"
	"""
	Git(;
	ignore=String[],
	name=nothing,
	email=nothing,
	branch=LibGit2.getconfig("init.defaultBranch", "$DEFAULT_DEFAULT_BRANCH")
	ssh=false,
	jl=true,
	manifest=false,
	gpgsign=false,
	)
	Creates a Git repository and a `.gitignore` file.

The problem is likely further upstream, maybe libgit2 is still using master as default?

[nsajko]

I always use PkgTemplates via the interactive generate() process. FTR all of my new packages get main instead of master for a long time now. Not that I care.