add reo.dev integration (#1652)

Author: HarshCasper

layouts/partials/hooks/head-end.html

@@ -10,3 +10,6 @@
   data-user-analytics-fingerprint-enabled="true"
   data-modal-disclaimer="This is a custom LocalStack LLM to help you find the information you need by searching across all LocalStack documentation. Give it a try and let us know what you think!"
 ></script>
+<script type="text/javascript">
+  !function(){var e,t,n;e="f528d4d390d322d",t=function(){Reo.init({clientID:"f528d4d390d322d"})},(n=document.createElement("script")).src="https://static.reo.dev/"+e+"/reo.js",n.defer=!0,n.onload=t,document.head.appendChild(n)}();
+</script>