Add new champions for Iterator Helpers proposal

README.md

@@ -49,7 +49,7 @@ Stage 2 indicates that the committee expects these features to be developed and
 | [`String.prototype.replaceAll`][replace-all]                                   | Peter Marshall<br />Jakob Gruber<br />Mathias Bynens  | Mathias Bynens                                                                    | <sub>[March&nbsp;2019][replace-all-notes]</sub>                     |
 | [Array.isTemplateObject][isTemplateObject]                                     | Mike Samuel                                           | Mike Samuel                                                                       | <sub>[June&nbsp;2019][isTemplateObject-notes]</sub>                 |
 | [`Promise.any`][promise-any]                                                   | Mathias Bynens<br />Kevin Gibbons<br />Sergey Rubanov | Mathias Bynens                                                                    | <sub>[July 2019][promise-any-notes]</sub>                           |
-| [Iterator helpers][iterator-helpers]                                           | Gus Caplan                                            | (none)                                                                  | <sub>[July 2019][iterator-helpers-notes]</sub>                      |
+| [Iterator helpers][iterator-helpers]                                           | Gus Caplan                                            | Michael Ficarra<br />Jonathan Keslin                                                                  | <sub>[July 2019][iterator-helpers-notes]</sub>                      |
 | [Explicit Resource Management][resource-management]                            | Ron Buckton                                           | Ron Buckton                                                                       | <sub>[July 2019][resource-management-notes]</sub>                   |
 
 :white_check_mark: means a pull request for tests was merged.