Added styling for mermaid tooltips

Adjustments of tooltip positioning for large documents

Documentation of tooltips

docs/tpl/slate.html

@@ -49,6 +49,9 @@
         $(function () {
             setupLanguages(["shell", "javascript", "html", "css","mermaid"]);
         });
+        var callback = function(){
+            alert('A callback was triggered');
+        }
     </script>
 </head>