Implemented the "tagging()" method for the the AnalyticsEvent+Tagging extension in the Infrastructure package.

Packages/Infrastructure/README.md

@@ -9,7 +9,7 @@ The shared [Hummingbird](https://github.com/hummingbird-project/hummingbird) too
 | Pages and assets | `Page`, `Asset`, `AssetExtension`, `FingerprintAssets` |
 | Link previews | `SocialCard`, its `Image` and `Style`, and the `Tag` meta tags it derives |
 | Structured data | `StructuredData`, the `Node`, `Property`, and `Value` types of its schema.org graph, the open `Name` and `Kind` vocabularies, and the site-wide initializer building the `Organization`/`WebSite` pair |
-| Analytics | `Analytics`, the `Event`s a page reports, the tracker script `Attribute`s it derives, and the `origin` its preconnect hint targets |
+| Analytics | `Analytics`, the `Event`s a page reports (with `tagging()` to apply one to a tag), the tracker script `Attribute`s it derives, and the `origin` its preconnect hint targets |
 | Responses | `CachedHTMLResponse`, `LocalizedHTMLCollectionResponse` |
 | Contexts | `LocalizedRequestContext` |
 | Constants | The `HTTPField.Name` header names, `Int.RateLimit` limits, and `String.Security` header values the middlewares default to |
@@ -29,7 +29,7 @@ Sources/
 ├── Public/                public API
 │   ├── Builders/          RouteCollectionBuilder
 │   ├── Enumerations/      AssetExtension
-│   ├── Extensions/        addController, plus the default header names, rate limits, and header values
+│   ├── Extensions/        addController and Analytics.Event tagging, plus the default header names, rate limits, and header values
 │   ├── Methods/           FingerprintAssets
 │   ├── Middlewares/       the seven HTTP middlewares
 │   ├── Protocols/         Asset, LocalizedRequestContext, Page, RouterController