Update the centering layout of the previous section in the README file

[lmliheng]

Before

After

[github-actions]

How to test

git clone -b master https://github.com/lmliheng/hexo.git
cd hexo
npm install
npm test

[uiolee]

Thank you for your efforts.

Is there any reason to use complex html instead of simple markdown?
Personally, I don't think i can accept it.

[lmliheng]

谢谢你的努力。

有什么理由使用复杂的 html 而不是简单的 Markdown 吗？就个人而言，我认为我不能接受。

Okay, but it's definitely more beautiful, and it's a one-time deal

[yoshinorin]

Thank you for submitting the PR.

However, we do not see a sufficient reason to accept this PR. Aesthetic judgments are subjective and generally do not constitute a solid basis for acceptance. In this case, it seems to fall within the personal preference. Additionally, no one can ensure that this will be a one-time change.