博客园美化：添加Github链接图案

将以下代码复制粘贴到页首 HTML 代码：

<!--github链接图案-->
<a href="https://zhangshuhao1116.gitee.io" class="github-corner" 
aria-label="View source on GitHub"><svg width="90" height="90" viewBox="0 0 250 250" 
style="fill:#70B7FD; color:#fff; position: absolute; top: 0; border: 0; left: 0; 
transform: scale(-1, 1);" aria-hidden="true">
<path d="M0,0 L115,115 L130,115 L142,142 L250,250 L250,0 Z">
</path><path d="M128.3,109.0 C113.8,99.7 119.0,89.6 119.0,
89.6 C122.0,82.7 120.5,78.6 120.5,78.6 C119.2,72.0 123.4,76.3 123.4,
76.3 C127.3,80.9 125.5,87.3 125.5,87.3 C122.9,97.6 130.6,
101.9 134.4,103.2" fill="currentColor" style="transform-origin: 130px 106px;"
 class="octo-arm"></path><path d="M115.0,115.0 C114.9,115.1 118.7,116.5 119.8,
115.4 L133.7,101.6 C136.9,99.2 139.9,98.4 142.2,98.6 C133.8,88.0 127.5,74.4 143.8,
58.0 C148.5,53.4 154.0,51.2 159.7,51.0 C160.3,49.4 163.2,43.6 171.4,40.1 C171.4,
40.1 176.1,42.5 178.8,56.2 C183.1,58.6 187.2,61.8 190.9,65.4 C194.5,69.0 197.7,
73.2 200.1,77.6 C213.8,80.2 216.3,84.9 216.3,84.9 C212.7,93.1 206.9,96.0 205.4,
96.6 C205.1,102.4 203.0,107.8 198.3,112.5 C181.9,128.9 168.3,122.5 157.7,114.1 C157.9,
116.9 156.7,120.9 152.7,124.9 L141.0,136.5 C139.8,137.7 141.6,141.9 141.8,141.8 Z"
 fill="currentColor" class="octo-body"></path></svg></a>
<style>.github-corner:hover 
.octo-arm{animation:octocat-wave 560ms ease-in-out}
@keyframes octocat-wave{0%,100%{transform:rotate(0)}20%,60%{transform:rotate(-25deg)}
40%,80%{transform:rotate(10deg)}}@media (max-width:500px)
{.github-corner:hover .octo-arm{animation:none}
.github-corner .octo-arm{animation:octocat-wave 560ms ease-in-out}}
</style>

注意：将下面href=“https://zhangshuhao1116.gitee.io”改成自己的Github地址（ps：Github太卡，所以我用的Gitee）

<a href="https://zhangshuhao1116.gitee.io" class="github-corner" 

效果图如下：