Fixed typo on line 211

Sources/AnimatedImageView.swift

@@ -208,7 +208,7 @@ class Animator {
     fileprivate var timeSinceLastFrameChange: TimeInterval = 0.0
     fileprivate var needsPrescaling = true
     
-    /// Loop count of animatd image.
+    /// Loop count of animated image.
     private var loopCount = 0
     
     var currentFrame: UIImage? {