Fix config issue

docusaurus.config.js

@@ -221,6 +221,11 @@ module.exports = {
         theme: {
           customCss: require.resolve('./src/css/custom.css'),
         },
+        gtag: {
+          trackingID: 'none',
+          // Optional fields.
+          anonymizeIP: true, // Should IPs be anonymized?
+        },
       },
     ],
   ],