title: After login successfully, URL not changing in yii2-app-basic
body: <p>I was going to About Page after Successfully login. It's OK.</p>
  
  <p>But, URL not changing to About Page. It is same as login Page, but the content of page is About Page.</p>
  
  <p><strong>SiteController.php</strong></p>
  
  <pre><code>public function actionLogin()
  {
      if (!\Yii::$app-&gt;user-&gt;isGuest) 
      {
          return $this-&gt;goHome();
      }
  
      $model = new LoginForm();
      if ($model-&gt;load(Yii::$app-&gt;request-&gt;post())) 
      {
          return $this-&gt;render('about'); // Here
      }
  
      return $this-&gt;render('login', [
          'model' =&gt; $model,
      ]);
  }
  </code></pre>
  
  <p>URL is same as <code>http://localhost/myProject/yii/web/index.php?r=site%2Flogin</code>.
  It should be <code>http://localhost/mylawsuit/yii/web/index.php?r=site%2Fabout</code></p>
  
  <p>So, how to change URL after login.? Thanks in advance.</p>