Typo fix [skip ci]

commands/HelloController.php

@@ -9,21 +9,21 @@ namespace app\commands;
 use yii\console\Controller;
 
 /**
- * This command echos what the first argument that you have entered.
+ * This command echoes what the first argument that you have entered.
  *
  * This command is provided as an example for you to learn how to create console commands.
- *
+ * 
  * @author Qiang Xue <qiang.xue@gmail.com>
  * @since 2.0
  */
 class HelloController extends Controller
 {
 	/**
-	 * This command echos what you have entered as the message.
+	 * This command echoes what you have entered as the message.
 	 * @param string $message the message to be echoed.
 	 */
 	public function actionIndex($message = 'hello world')
 	{
 		echo $message."\n";
 	}
-}
+}