update readme

README.md

@@ -15,10 +15,10 @@ If you want to create an app that displays the content of a remote website
 	mWebView.setWebViewClient(new MyWebViewClient());
 	```
 
-2. open the `MyWebViewClient.java` file and replace `example.com` on line **12** with your custom hostname
+2. open the `MyWebViewClient.java` file and replace `example.com` on line **14** with your custom hostname
 
 	```java
-	if (Uri.parse(url).getHost().endsWith("example.com")) {
+	if (Objects.requireNonNull(Uri.parse(url).getHost()).endsWith("example.com")) {
 	```
 
 ### Using a local source