Fix indentation

Example/DemoLightbox/DemoLightbox/ViewController.swift

@@ -13,11 +13,11 @@ class ViewController: UIViewController {
     button.autoresizingMask = [.flexibleTopMargin, .flexibleLeftMargin, .flexibleRightMargin, .flexibleBottomMargin]
     
     return button
-    }()
+  }()
   
   override func viewDidLoad() {
     super.viewDidLoad()
-    
+
     view.autoresizingMask = [.flexibleTopMargin, .flexibleLeftMargin, .flexibleRightMargin, .flexibleBottomMargin]
     view.backgroundColor = UIColor.white
     view.addSubview(showButton)

Source/Views/HeaderView.swift

@@ -38,7 +38,7 @@ open class HeaderView: UIView {
     button.isHidden = !LightboxConfig.CloseButton.enabled
 
     return button
-    }()
+  }()
 
   open fileprivate(set) lazy var deleteButton: UIButton = { [unowned self] in
     let title = NSAttributedString(
@@ -65,7 +65,7 @@ open class HeaderView: UIView {
     button.isHidden = !LightboxConfig.DeleteButton.enabled
 
     return button
-    }()
+  }()
 
   weak var delegate: HeaderViewDelegate?