update readme quickstarter

Author: nikolay-ngrok

README.md

@@ -109,40 +109,45 @@ dependencies {
 ## Quickstart
 
 ```java
+package com.ngrok.quickstart;
+
 import com.ngrok.Session;
-import com.ngrok.HttpTunnel;
-
-public class Echo {
-   public static void main(String[] args) throws IOException {
-      // Session.withAuthtokenFromEnv() will create a new session builder, pulling NGROK_AUTHTOKEN env variable.
-      // You can get your authtoken by registering at https://dashboard.ngrok.com
-      var sessionBuilder = Session.withAuthtokenFromEnv().metadata("my session");
-      // Session.Builder let you customize different aspects of the session, see docs for details.
-      // After customizing the builder, you connect:
-      try (var session = sessionBuilder.connect()) {
-         // Creates and configures http listener that will be using oauth to secure it
-         var listenerBuilder = session.httpEndpoint().metadata("my listener")
-                                                     .oauth(new Http.OAuthOptions("google")));
-         // Now start listening with the above configuration
-         try (var listener = listenerBuilder.listen()) {
-            System.out.println("ngrok url: " + listener.getUrl());
-            var buf = ByteBuffer.allocateDirect(1024);
-
-            while (true) {
-               // Accept a new connection
-               var conn = listener.accept();
-
-               // Read from the connection
-               conn.read(buf);
-
-               System.out.println(buf.asCharBuffer());
-
-               // Or write to it
-               conn.write(buf);
+import com.ngrok.Http;
+
+import java.io.IOException;
+import java.nio.ByteBuffer;
+
+public class Quickstart {
+    public static void main(String[] args) throws IOException {
+        // Session.withAuthtokenFromEnv() will create a new session builder, pulling NGROK_AUTHTOKEN env variable.
+        // You can get your authtoken by registering at https://dashboard.ngrok.com
+        var sessionBuilder = Session.withAuthtokenFromEnv().metadata("my session");
+        // Session.Builder let you customize different aspects of the session, see docs for details.
+        // After customizing the builder, you connect:
+        try (var session = sessionBuilder.connect()) {
+            // Creates and configures http listener that will be using oauth to secure it
+            var listenerBuilder = session.httpEndpoint().metadata("my listener")
+                    .oauthOptions(new Http.OAuth("google"));
+            // Now start listening with the above configuration
+            try (var listener = listenerBuilder.listen()) {
+                System.out.println("ngrok url: " + listener.getUrl());
+                var buf = ByteBuffer.allocateDirect(1024);
+
+                while (true) {
+                    // Accept a new connection
+                    var conn = listener.accept();
+
+                    // Read from the connection
+                    conn.read(buf);
+
+                    System.out.println(buf.asCharBuffer());
+
+                    // Or write to it
+                    conn.write(buf);
+                }
             }
-         }
-      }
-   }
+        }
+    }
 }
 ```