feat: add google analytics

Author: yanglbme

index.html

@@ -35,6 +35,7 @@
       logo: "/images/favicon-32x32.png",
       auto2top: true,
       search: ["/"],
+      ga: 'G-0L5LCSTV6G',
       darklightTheme: {
         defaultTheme: 'light',
         siteFont: 'Source Sans Pro,Helvetica Neue,Arial,sans-serif',
@@ -81,6 +82,7 @@
   <script src="https://cdn-doocs.oss-cn-shenzhen.aliyuncs.com/npm/docsify/lib/plugins/search.min.js"></script>
   <script src="https://cdn-doocs.oss-cn-shenzhen.aliyuncs.com/npm/docsify/lib/plugins/emoji.min.js"></script>
   <script src="https://cdn-doocs.oss-cn-shenzhen.aliyuncs.com/npm/docsify/lib/plugins/zoom-image.min.js"></script>
+  <script src="https://cdn-doocs.oss-cn-shenzhen.aliyuncs.com/npm/docsify-plugin-ga/docsify-plugin-ga.js"></script>
   <script src="https://cdn-doocs.oss-cn-shenzhen.aliyuncs.com/npm/docsify/lib/plugins/gitalk.min.js"></script>
   <script src="https://cdn-doocs.oss-cn-shenzhen.aliyuncs.com/npm/gitalk/dist/gitalk.min.js"></script>
   <script src="https://cdn-doocs.oss-cn-shenzhen.aliyuncs.com/npm/docsify-darklight-theme@latest/dist/index.min.js"></script>