`French translation Progress` (#3) Miss fill translated article(s).

[This translated article doesn't appear as it in #3 issue, but it actually is](https://github.com/javascript-tutorial/fr.javascript.info/blob/master/1-js/12-generators-iterators/2-async-iterators-generators/article.md)

将 1-js/12-generators-iterators/2-async-iterators-generators/article.md 中链接的文章与 issue #3 记录的翻译进度进行比较。确定已完成的翻译应列在何处，然后更新进度记录，使该文章出现在那里。

由索引模型根据 Issue 内容生成。