Add comment for datadog uptime check

Author: RamZallan

_includes/head.html

@@ -21,4 +21,9 @@
     <link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/slick-carousel/1.9.0/slick-theme.min.css"/>
     <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.8.2/css/all.css" integrity="sha384-oS3vJWv+0UjzBfQzYUhtDYW+Pj2yciDJxpsK1OYPAYjqT085Qq/1cq5FLXAZQ7Ay" crossorigin="anonymous">
     <link rel="stylesheet" href="{{ '/assets/css/main.css' | relative_url }}">
+<<<<<<< Updated upstream
+=======
+
+    <!-- Getting more done after 2am than most people do all day! -->
+>>>>>>> Stashed changes
 </head>