🕵🏻 Add G-TAG

Author: Hona

docfx.json

@@ -34,7 +34,8 @@
         "repo": "https://github.com/Hona/VerticalSliceArchitecture.Documentation",
         "branch": "main"
       },
-      "_appFooter": "We ❤️ Open Source · Powered by <a href='https://github.com/dotnet/docfx' target='_blank'>docfx</a> · Built with  by <a href='https://lukeparker.dev' target='_blank'>Luke Parker</a> (<a href='https://github.com/Hona' target='_blank'>Hona</a>) · Contributions welcome on <a href='https://github.com/Hona/VerticalSliceArchitecture.Documentation' target='_blank'>GitHub</a>"
+      "_appFooter": "We ❤️ Open Source · Powered by <a href='https://github.com/dotnet/docfx' target='_blank'>docfx</a> · Built with  by <a href='https://lukeparker.dev' target='_blank'>Luke Parker</a> (<a href='https://github.com/Hona' target='_blank'>Hona</a>) · Contributions welcome on <a href='https://github.com/Hona/VerticalSliceArchitecture.Documentation' target='_blank'>GitHub</a>",
+      "_googleAnalyticsTagId": "G-2LX1XZ6VYY"
     },
     "disableGitFeatures": false
   }