bug: add TODO

Author: r00ster91

lib/docs/main.js

@@ -3189,6 +3189,7 @@ var zigAnalysis;
         ev.stopPropagation();
         return;
       case "Down":
+        // TODO: make the page scroll down if the search cursor is out of the screen
         moveSearchCursor(1);
         ev.preventDefault();
         ev.stopPropagation();