Use Git URL

Author: florianpircher

README.md

@@ -47,7 +47,7 @@ Add `swift-delta` as a dependency to your package:
 let package = Package(
     // ...
     dependencies: [
-        .package(url: "https://github.com/Formkunft/swift-delta", .upToNextMajor(from: "0.4.0")),
+        .package(url: "https://github.com/Formkunft/swift-delta.git", .upToNextMajor(from: "0.4.0")),
     ],
     targets: [
         .target(