Update README

Author: adamziel

README.md

@@ -46,19 +46,30 @@ You can connect to the Playground using the JavaScript client. Here's an example
 		<script type="module">
 			import { startPlayground } from '@wp-playground/client';
 
-			const client = await startPlayground({
-				iframe: document.getElementById('wp'),
-				remoteUrl: 'https://playground.wordpress.net/remote.html',
+			const client = await loadPlayground({
+				iframe,
+				remoteUrl: `https://playground.wordpress.net/remote.html`,
 				blueprint: {
+					landingPage: '/wp-admin/',
 					preferredVersions: {
 						php: '8.0',
-						wp: 'latest'
+						wp: 'latest',
 					},
-					steps: {
-						{ "step": "login", "username": "admin", "password": "password" },
-						{ "goTo": "/wp-admin/post-new.php" }
-					}
-				}
+					steps: [
+						{
+							step: 'login',
+							username: 'admin',
+							password: 'password',
+						},
+						{
+							step: 'installPlugin',
+							pluginZipFile: {
+								resource: 'wordpress.org/plugins',
+								slug: 'friends',
+							},
+						},
+					],
+				},
 			});
 
 			const response = await client.run({