Written the documentation for the Amiibo model.

Sources/Models/Amiibo.swift

@@ -1,22 +1,54 @@
+/// This model struct represents an amiibo that is retrieved from the respective [remote API endpoint](https://www.amiiboapi.com/docs/#amiibo).
 public struct Amiibo {
+    
+    // MARK: Properties
+
+    /// The type the amiibo belongs to.
     public let type: String
+    
+    /// The first 8 values of the hexadecimal that identifies the amiibo.
     public let head: String
+    
+    /// The last 8 values of the hexadecimal that identifies the amiibo.
     public let tail: String
+    
+    /// The name of the amiibo.
     public let name: String
+    
+    /// The character of the amiibo.
     public let character: String
+    
+    /// The series the amiibo belongs to.
     public let series: String
+    
+    /// The game series of the amiibo.
     public let gameSeries: String
+    
+    /// The URL to an image of the amiibo.
     public let image: String
+    
+    /// The release dates of the amiibo (if released) in Australia, Europe, Japan and North America.
     public let release: Release
+    
+    /// The games related to the amiibo, if requested.
     public let games: Games?
 }
 
 // MARK: - Structs
 
 extension Amiibo {
+    /// This model represents the list of games related to a particular amiibo, grouped by system.
     public struct Games: Decodable {
+        
+        // MARK: Properties
+        
+        /// A list of [Nintendo 3DS system](https://en.wikipedia.org/wiki/Nintendo_3DS) games the amiibo can be used with.
         public let n3ds: [Game]
+        
+        /// A list of [Nintendo WiiU system](https://en.wikipedia.org/wiki/Wii_U) games the amiibo can be used with.
         public let wiiu: [Game]
+        
+        /// /// A list of [Nintendo Switch system](https://en.wikipedia.org/wiki/Nintendo_Switch) games the amiibo can be used with.
         public let `switch`: [Game]
     }
 }
@@ -44,6 +76,9 @@ extension Amiibo: Decodable {
     
     // MARK: Initialisers
     
+    /// Initialises this model by decoding from the given decoder.
+    /// - Parameter decoder: The decoder to read data from.
+    /// - Throws: A `DecodingError` error in case the decode failed at decoding data into an expected model type.
     public init(from decoder: Decoder) throws {
         let container = try decoder.container(keyedBy: CodingKeys.self)
         let games3ds = try container.decodeIfPresent([Game].self, forKey: .games3DS)