Update article.md

Add results of 2nd alert

1-js/09-classes/03-static-properties-methods/article.md

@@ -192,7 +192,7 @@ class Rabbit extends Animal {}
 alert(Rabbit.__proto__ === Animal); // true
 
 // for regular methods
-alert(Rabbit.prototype.__proto__ === Animal.prototype);
+alert(Rabbit.prototype.__proto__ === Animal.prototype); // true
 ```
 
 ## Summary