doc: add marco-ippolito to collaborators

Fixes: #46660
PR-URL: #46816
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Xuguang Mei <meixuguang@gmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Mohammed Keyvanzadeh <mohammadkeyvanzade94@gmail.com>
Reviewed-By: Debadree Chatterjee <debadree333@gmail.com>

README.md

@@ -380,6 +380,8 @@ For information about the governance of the Node.js project, see
   **Luke Karrys** <<luke@lukekarrys.com>> (he/him)
 * [Lxxyx](https://github.com/Lxxyx) -
   **Zijian Liu** <<lxxyxzj@gmail.com>> (he/him)
+* [marco-ippolito](https://github.com/marco-ippolito) -
+  **Marco Ippolito** <<marcoippolito54@gmail.com>> (he/him)
 * [marsonya](https://github.com/marsonya) -
   **Akhil Marsonya** <<akhil.marsonya27@gmail.com>> (he/him)
 * [mcollina](https://github.com/mcollina) -