Add Plausible analytics script to site header

Author: rich-iannone

pkgdown/_pkgdown.yml

@@ -11,6 +11,11 @@ template:
   includes:
     in_header: |
       <script src="https://cdn.jsdelivr.net/gh/posit-dev/supported-by-posit/js/badge.min.js"></script>
+      <script async src="https://plausible.io/js/pa-HLZM5CO37fy0jlnkEuOvW.js"></script>
+      <script>
+        window.plausible=window.plausible||function(){(plausible.q=plausible.q||[]).push(arguments)},plausible.init=plausible.init||function(i){plausible.o=i||{}};
+        plausible.init()
+      </script>
   assets: pkgdown/assets
 
 authors: