MKdocs添加顶部公告栏

效果如图：

docs/overrides下新建main.html ，针对main.html文件
树状结构如下:

$ tree -a
.
├── .github
│   ├── .DS_Store
│   └── workflows
│       └── PublishMySite.yml
├── docs
│   └── index.md
│   └──overrides
│       └──assets
│       └──main.html
│       └──partials
│          └──comments.html
│
└── mkdocs.yml

{#-This file was automatically generated - do not edit-#}{% extends "base.html" %}{% block extrahead %}<link rel="stylesheet" href="{{ 'assets/stylesheets/custom.00c04c01.min.css' | url }}">{% endblock %}{% block announce %}Follow <strong>@Wcowin</strong> on<a rel="me" href="https://space.bilibili.com/1407028951?spm_id_from=333.1007.0.0"><span class="twemoji bilibili">{% include ".icons/fontawesome/brands/bilibili.svg" %}</span><strong>Bilibili</strong></a>and<a href="https://twitter.com/Wcowin_"><span class="twemoji twitter">{% include ".icons/fontawesome/brands/twitter.svg" %}</span><strong>Twitter</strong></a>{% endblock %}{% block scripts %}{{ super() }}<script src="{{ 'assets/javascripts/custom.9458f965.min.js' | url }}"></script>{% endblock %}

自行修改即可