feat: Adding Tech Style Guide top nav

Author: imtodor

_plugins/top_navigation.rb

@@ -25,7 +25,8 @@
     "php-ui" => "php",
     "jsp-ui" => "jsp",
     "blazor" => "blazor-ui",
-    "ar-vr" => "vr-lab"
+    "ar-vr" => "vr-lab",
+    "tech-style-guide" => "store"
   }
 
   html = ''