Fixed google analytics as per issue academicpages#265-academic pages

Author: manideepabc

_config.yml

@@ -74,11 +74,9 @@ social:
 
 # Analytics
 analytics:
-  provider               : "google" # false (default), "google", "google-universal", "custom", "goatcounter"
+  provider               : "custom" # false (default), "google", "google-universal", "custom", "goatcounter"
   google:
-    tracking_id          : G-D2VVPD3Y2T
-  goatcounter:
-    code		 : 
+    tracking_id          : "G-D2VVPD3Y2T"
 
 
 # Site Author

_includes/analytics-providers/custom.html

@@ -1,3 +1,13 @@
 <!-- start custom analytics snippet -->
 
+<!-- Google tag (gtag.js) -->
+<script async src="https://www.googletagmanager.com/gtag/js?id=G-D2VVPD3Y2T"></script>
+<script>
+  window.dataLayer = window.dataLayer || [];
+  function gtag(){dataLayer.push(arguments);}
+  gtag('js', new Date());
+
+  gtag('config', 'G-D2VVPD3Y2T');
+</script>
+
 <!-- end custom analytics snippet -->