Update article.md

Typo: F.property => F.prototype

Author: david-cho-lerat-HL2

Diff for: 1-js/08-prototypes/02-function-prototype/article.md

@@ -43,7 +43,7 @@ On the picture, `"prototype"` is a horizontal arrow, meaning a regular property,
 ```smart header="`F.prototype` only used at `new F` time"
 `F.prototype` property is only used when `new F` is called, it assigns `[[Prototype]]` of the new object. After that, there's no connection between `F.prototype` and the new object. Think of it as a "one-time gift".
 
-If, after the creation, `F.prototype` property changes (`F.property = <another object>`), then new objects created by `new F` will have another object as `[[Prototype]]`, but already existing objects keep the old one.
+If, after the creation, `F.prototype` property changes (`F.prototype = <another object>`), then new objects created by `new F` will have another object as `[[Prototype]]`, but already existing objects keep the old one.
 ```
 
 ## Default F.prototype, constructor property