call can throw but is not marked with try

Hello,
I See JSON(data: data) has throws exception, so add 'try' in front, the error "call can throw but is not marked with try" can fixed.

public init(data: Data, options opt: JSONSerialization.ReadingOptions = []) throws {
}

Example/Example/AppDelegate.swift

@@ -36,7 +36,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
         if let file = Bundle.main.path(forResource: "SwiftyJSONTests", ofType: "json") {
             do {
                 let data = try Data(contentsOf: URL(fileURLWithPath: file))
-                let json = JSON(data: data)
+                let json = try JSON(data: data)
                 viewController.json = json
             } catch {
                 viewController.json = JSON.null