Implemented the "encode(to: )" function of the Encodable protocol for the Feed model in the iTunes library.

Libraries/iTunes/Kit/Extensions/ServiceConfiguration+Inits.swift

@@ -7,6 +7,7 @@
 //
 
 import Foundation
+import ReviewsFoundationKit
 import ReviewsFeedKit
 
 extension ServiceConfiguration {

Libraries/iTunes/Kit/Models/Feed.swift

@@ -36,3 +36,16 @@ extension Feed: Decodable {
     }
     
 }
+
+// MARK: - Encodable
+extension Feed: Encodable {
+    
+    // MARK: Functions
+    func encode(to encoder: any Encoder) throws {
+        var feed = encoder.container(keyedBy: FeedKeys.self)
+        var feedEntry = feed.nestedContainer(keyedBy: EntryKeys.self, forKey: .feed)
+        
+        try feedEntry.encode(entries, forKey: .entry)
+    }
+    
+}