docs: add GA for docs.tendermint.com (#4149)

docs/.vuepress/config.js

@@ -141,5 +141,13 @@ module.exports = {
     anchor: {
       permalinkSymbol: ""
     }
-  }
+  },
+  plugins: [
+    [
+      "@vuepress/google-analytics",
+      {
+        ga: "UA-51029217-11"
+      }
+    ]
+  ],
 };

docs/package-lock.json

@@ -1132,6 +1132,12 @@
         "lodash.debounce": "^4.0.8"
       }
     },
+    "@vuepress/plugin-google-analytics": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/@vuepress/plugin-google-analytics/-/plugin-google-analytics-1.2.0.tgz",
+      "integrity": "sha512-0zol5D4Efb5GKel7ADO/s65MLtKSLnOEGkeWzuipkWomSQPzP7TJ3+/RcYBnGdyBFHd1BSpTUHGK0b/IGwM3UA==",
+      "dev": true
+    },
     "@vuepress/plugin-last-updated": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/@vuepress/plugin-last-updated/-/plugin-last-updated-1.2.0.tgz",

docs/package.json

@@ -6,7 +6,9 @@
   "dependencies": {
     "vuepress-theme-cosmos": "^1.0.54"
   },
-  "devDependencies": {},
+  "devDependencies": {
+    "@vuepress/plugin-google-analytics": "^1.2.0"
+  },
   "scripts": {
     "preserve": "./pre.sh",
     "serve": "trap 'exit 0' SIGINT; vuepress dev",