Adding google analytics

Change-Id: I27e56eb1878c2648ea1956ab89d48299a91d31a6
diff --git a/package.json b/package.json
index 031c245..3456b2b 100644
--- a/package.json
+++ b/package.json
@@ -4,6 +4,7 @@
   "description": "Documentation for the OpenCORD Project",
   "main": "index.js",
   "dependencies": {
+    "gitbook-plugin-ga": "^2.0.0"
   },
   "devDependencies": {},
   "scripts": {