Update README.md

[mikekreuzer]

Update example Package.swift syntax

[QuietMisdreavus]

Thanks for the PR! I had a couple comments about your changes.

[QuietMisdreavus]

I don't see a .package method that has a branch: parameter in the SwiftPM reference. Is this something that you needed to do to get this to build on your system?

[mikekreuzer]

It's there on the page you linked to :-)

Mostly I chose branch because that's what was there before, but there is a note on the pm reference that gives me pause:

/// Note that packages that use branch-based dependency requirements
/// can't be depended upon by packages that use version-based dependency
/// requirements; you should remove branch-based dependency requirements
/// before publishing a version of your package.

I don't know if the package manager really enforces that, it doesn't seem to, but we can't use version numbers here because the repo doesn't have semver numbered releases, just a lot of non semver tags.

[QuietMisdreavus]

I still don't see it as an overload of the .package method. Instead i see:

static func package(url: String, from version: Version) -> Package.Dependency
static func package(url: String, _ requirement: Package.Dependency.Requirement) -> Package.Dependency
static func package(url: String, _ range: Range<Version>) -> Package.Dependency
static func package(url: String, _ range: ClosedRange<Version>) -> Package.Dependency
static func package(path: String) -> Package.Dependency

The way to define a branch-based dependency is to use the .branch method on Requirement and the .package(url:_:) overload that takes a Requirement, like the existing readme states. Does the form you've added, .package(url:branch:) work for you? I'm really curious to see if there's an undocumented overload there.

[ethan-kusters]

I believe it's this one: https://developer.apple.com/documentation/packagedescription/package/dependency/package(url:branch:).

The .branch version (https://developer.apple.com/documentation/packagedescription/package/dependency/requirement-swift.enum/branch(_:)) is deprecated as of Swift 5.6 but still works.

[Kyle-Ye]

Close in favor of #10