Merge pull request #7422 from github/todo-comment-kind

Add `kind` metadata to example query.

javascript/ql/examples/snippets/todocomment.ql

@@ -2,6 +2,8 @@
  * @id js/examples/todocomment
  * @name TODO comments
  * @description Finds comments containing the word TODO
+ * @kind problem
+ * @problem.severity recommendation
  * @tags comment
  *       TODO
  */
@@ -10,4 +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."