add google analytics

Author: gregsdennis

_config.yml

@@ -63,7 +63,7 @@ google_site_verification: # fill in to your verification string
 # The end of `jekyll-seo-tag` settings
 
 google_analytics:
-  id: # fill in your Google Analytics ID
+  id: G-34G5KS8B7M
   # Google Analytics pageviews report settings
   pv:
     proxy_endpoint: # fill in the Google Analytics superProxy endpoint of Google App Engine