WeakRef and FinalizationRegistry md doesnt follow site format

还没有人认领这个 Issue。

Not sure it's a real issue, the article looks ok on chrome
maybe should check others, and epub
it looks like an incomplete conversion from html to md

- it uses html br and code tags (only the last part of the article)

- it breaks single sentences in several lines, html dont care but it prevent proper media based formatting in md

- no blank lines between sentences, it's not consistent with the rest of the site

打开 WeakRef 和 FinalizationRegistry 文章的 Markdown 源文件，并将其与网站的格式约定进行比较。检查报告中提到的 HTML br 和 code 标签、句子的换行方式以及缺失的空行，然后在 Chrome 和 EPUB 中验证渲染后的文章，以确认格式保持一致。

由索引模型根据 Issue 内容生成。