Add a severity and select the correct number of columns.

javascript/ql/examples/snippets/todocomment.ql

@@ -3,6 +3,7 @@
  * @name TODO comments
  * @description Finds comments containing the word TODO
  * @kind problem
+ * @problem.severity recommendation
  * @tags comment
  *       TODO
  */
@@ -11,4 +12,4 @@ import javascript
 
 from Comment c
 where c.getText().regexpMatch("(?si).*\\bTODO\\b.*")
-select c
+select c, "TODO comments indicate that the code may not be complete."