Prepare 0.1.0 release

Motivation:

Bring the repo in a state for an initial 0.1.0 release.

Modifications:

* Use tagged releases for dependencies.
* Clarify versioning in README.
* Update snippet accordingly.

Results:

Ready, set, ...

Author: josephnoir

Package.swift

@@ -34,8 +34,8 @@ let package = Package(
         .package(url: "https://github.com/apple/swift-crypto.git", from: "5.0.0-beta.1"),
         .package(url: "https://github.com/apple/swift-certificates.git", from: "1.19.3"),
         .package(url: "https://github.com/apple/swift-nio-extras.git", from: "1.22.0"),
-        .package(url: "https://github.com/apple/swift-nio-quic-helpers.git", branch: "main"),
-        .package(url: "https://github.com/apple/swift-nio-quic.git", branch: "main"),
+        .package(url: "https://github.com/apple/swift-nio-quic-helpers.git", .upToNextMinor(from: "0.1.0")),
+        .package(url: "https://github.com/apple/swift-nio-quic.git", .upToNextMinor(from: "0.1.0")),
     ],
     targets: [
         .target(

README.md

@@ -21,8 +21,8 @@ let package = Package(
     name: "Application",
     dependencies: [
         .package(url: "https://github.com/apple/swift-nio.git", from: "2.100.0"),
-        .package(url: "https://github.com/apple/swift-nio-http3", branch: "main"),
-        .package(url: "https://github.com/apple/swift-nio-quic", branch: "main"),
+        .package(url: "https://github.com/apple/swift-nio-http3", .upToNextMinor(from: "0.1.0")),
+        .package(url: "https://github.com/apple/swift-nio-quic", .upToNextMinor(from: "0.1.0")),
     ],
     targets: [
         .executableTarget(
@@ -75,5 +75,13 @@ SWIFT_CERTIFICATES_ALLOW_SWIFT_CRYPTO_BETA=1 swift test --filter EncoderTests.ma
 Use `SWIFT_CERTIFICATES_ALLOW_SWIFT_CRYPTO_BETA=1 xed Package.swift` to open
 the project in Xcode with the environment variable set.
 
+### Versioning
+
+While the library is in the 0.x.x version range, you should adopt it using
+the `.upToNextMinor(from: "0.1.0")` specifier. During this period, breaking
+changes are intended to map to minor version bumps, so depending on the
+library this way picks up smaller, non-breaking changes automatically while
+protecting against API-breaking ones.
+
 [swift-nio-quic]: https://github.com/apple/swift-nio-quic
 [swift-nio]: https://github.com/apple/swift-nio