doc: add @meixg to collaborators

PR-URL: nodejs/node#42576
Fixes: nodejs/node#42419
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Darshan Sen <raisinten@gmail.com>
Reviewed-By: Mestery <mestery@protonmail.com>
Reviewed-By: Qingyu Deng <i@ayase-lab.com>

README.md

@@ -374,6 +374,8 @@ For information about the governance of the Node.js project, see
   **Akhil Marsonya** <<akhil.marsonya27@gmail.com>> (he/him)
 * [mcollina](https://github.com/mcollina) -
   **Matteo Collina** <<matteo.collina@gmail.com>> (he/him)
+* [meixg](https://github.com/meixg) -
+  **Xuguang Mei** <<meixuguang@gmail.com>> (he/him)
 * [Mesteery](https://github.com/Mesteery) -
   **Mestery** <<mestery@protonmail.com>> (he/him)
 * [mhdawson](https://github.com/mhdawson) -
@@ -645,7 +647,7 @@ maintaining the Node.js project.
 * [marsonya](https://github.com/marsonya) -
   **Akhil Marsonya** <<akhil.marsonya27@gmail.com>> (he/him)
 * [meixg](https://github.com/meixg) -
-  **Xuguang Mei** <<meixg@foxmail.com>> (he/him)
+  **Xuguang Mei** <<meixuguang@gmail.com>> (he/him)
 * [Mesteery](https://github.com/Mesteery) -
   **Mestery** <<mestery@protonmail.com>> (he/him)
 * [PoojaDurgad](https://github.com/PoojaDurgad) -