Added a DocC catalog coverage check.

README.md

@@ -31,33 +31,31 @@ Then add it to your target dependencies:
 
 ### Creating a Client
 
-Create a `Client` with a server URL, a transport, and a `BearerAuthMiddleware` that authenticates each request with a JSON Web Token (JWT). To get a token, create an API key in App Store Connect and sign a JWT with its key ID, issuer ID, and private key:
+Create a `Client` with a server URL, a transport, and a `BearerAuthMiddleware`. With an API key from App Store Connect, `APIKeyTokenProvider` signs the JSON Web Tokens (JWT) the API requires, and renews them before they expire:
 
 ```swift
 import ASConnectService
 import OpenAPIURLSession
 
-let client = Client(
-    serverURL: try Servers.Server1.url(),
-    transport: URLSessionTransport(),
-    middlewares: [
-        BearerAuthMiddleware(token: yourJWTToken)
-    ]
-)
-```
-
-Tokens expire after 20 minutes at most. For longer-lived clients, use `APIKeyTokenProvider`, which signs new ones with your API key as needed:
-
-```swift
 let tokenProvider = try APIKeyTokenProvider(
     issuerID: yourIssuerID,
     keyID: yourKeyID,
     privateKey: yourP8FileContents
 )
 
-BearerAuthMiddleware {
-    try await tokenProvider.token()
-}
+let client = Client(
+    serverURL: try Servers.Server1.url(),
+    transport: URLSessionTransport(),
+    middlewares: [
+        BearerAuthMiddleware { try await tokenProvider.token() }
+    ]
+)
+```
+
+To use a token you signed yourself, pass it directly. It expires after 20 minutes at most:
+
+```swift
+BearerAuthMiddleware(token: yourJWTToken)
 ```
 
 ### Making API Calls
@@ -97,8 +95,9 @@ middlewares: [
 ]
 ```
 
-## Supported Platforms
+## Requirements
 
+- Swift 6.0+ (Xcode 16+)
 - iOS 14.0+
 - macOS 11.0+
 - tvOS 14.0+
@@ -130,6 +129,9 @@ make doc-generate-github
 
 # Preview documentation locally in Safari
 make doc-preview
+
+# Check the catalog covers the generated code
+make doc-check
 ```
 
 ### Updating the API