FIX: delete extra space

Author: leviding

1-js/08-prototypes/01-prototype-inheritance/article.md

@@ -198,8 +198,8 @@ alert(admin.fullName); // John Smith (*)
 // setter triggers!
 admin.fullName = "Alice Cooper"; // (**)
 
-alert(admin.fullName); // Alice Cooper , state of admin modified
-alert(user.fullName); // John Smith , state of user protected
+alert(admin.fullName); // Alice Cooper, state of admin modified
+alert(user.fullName); // John Smith, state of user protected
 ```
 
 Here in the line `(*)` the property `admin.fullName` has a getter in the prototype `user`, so it is called. And in the line `(**)` the property has a setter in the prototype, so it is called.