Update README.md

DavinAhn · DavinAhn · commit 222df19edaca · 2017-01-19T10:48:35.000+09:00
diff --git a/README.md b/README.md
@@ -66,14 +66,17 @@ class ViewController: UIViewController {
 		// Create javaScriptController.
 		let javaScriptController = WKJavaScriptController(name: "native", target: self, bridgeProtocol: JavaScriptInterface.self)
 		
-		// Add your javascript.
+		// [Optional] Add your javascript.
 		let jsString = ...
 		let userScript = WKUserScript(source: jsString, injectionTime: .AtDocumentEnd, forMainFrameOnly: true)
 		javaScriptController.addUserScript(userScript)
 		
 		let webView = WKWebView(...)
 		...
 		
+		// Assign javaScriptController.
+		webView.javaScriptController = javaScriptController
+		
 		// Call prepareForJavaScriptController before initializing WKWebView or loading page.
 		webView.prepareForJavaScriptController()
 		webView.loadRequest(...)
