google analytics config setting: encourage gtag, discourage google_an…

…alytics (fixes daattali#1096)

CHANGELOG.md

@@ -22,6 +22,7 @@
 - Added `footer-hover-col` config setting to customize the hover colour of links in the footer (#848)
 - Added social network links for Discord (#907), Kaggle (#961), and Hackerrank (#978)
 - Made the home page feed more accessible for screen readers (#950) 
+- When using Google Analytics config setting, encourage using the new `gtag` and discourage using the deprecated `google_analytics` (#1096)
 
 ## v5.0.0 (2020-09-15)
 

_config.yml

@@ -159,11 +159,8 @@ footer-hover-col: "#0085A1"
 # --- Web Analytics Section --- #
 #################################
 
-# Fill in your Google Analytics gtag.js ID to track your website using gtag
-#gtag: ""
-
-# Fill in your Google Analytics ID to track your website using Google Analytics
-#google_analytics: ""
+# Fill in your Google Analytics tag ID (or "Measurement ID") to track your website usage
+#gtag: "G-XXXXXXXXXX"
 
 # Fill in your Cloudflare Analytics beacon token to track your website using Cloudflare Analytics
 #cloudflare_analytics: ""
@@ -179,6 +176,11 @@ footer-hover-col: "#0085A1"
 #  uri: "demo.wiki.pro"
 #  opt-out: true
 
+# Gogle Universal Analytics ID -- deprecated
+# As of July 2023 this is no longer supported by Google! If you are still using `google_analytics`,
+# you should switch to using the `gtag` field above instead.
+#google_analytics: "UA-XXXXXXXX-X"
+
 ####################
 # --- Comments --- #
 ####################