doc: add ZYSzys to collaborators

ZYSzys · BethGriggs · commit 621099ebed5e · 2019-04-17T11:30:29.000+01:00
Fixes: #26440 PR-URL: #26730 Fixes: #26440 Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net>
diff --git a/README.md b/README.md
@@ -488,6 +488,8 @@ For information about the governance of the Node.js project, see
 **Yorkie Liu** &lt;yorkiefixer@gmail.com&gt;
 * [yosuke-furukawa](https://github.com/yosuke-furukawa) -
 **Yosuke Furukawa** &lt;yosuke.furukawa@gmail.com&gt;
+* [ZYSzys](https://github.com/ZYSzys) -
+**Yongsheng Zhang** &lt;zyszys98@gmail.com&gt; (he/him)
 
 ### Collaborator Emeriti
 
