adds goat counter

public/index.html

@@ -20,5 +20,15 @@
     </noscript>
     <div id="app"></div>
     <!-- built files will be auto injected -->
+    <script>
+      window.goatcounter = {no_onload: true}
+      window.addEventListener('hashchange', function(e) {
+        window.goatcounter.count({
+          path: location.pathname + location.search + location.hash
+        })
+      })
+    </script>
+    <script data-goatcounter="https://rpg-cards-ng.goatcounter.com/count"
+            async src="//gc.zgo.at/count.js"></script>
   </body>
 </html>