doc: add new TSC members

Refs: nodejs/TSC#1411
Refs: nodejs/TSC#1410

Signed-off-by: Michael Dawson <mdawson@devrus.com>

PR-URL: nodejs#48841
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
Reviewed-By: Debadree Chatterjee <debadree333@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>

README.md

@@ -164,8 +164,12 @@ For information about the governance of the Node.js project, see
 
 * [aduh95](https://github.com/aduh95) -
   **Antoine du Hamel** <<duhamelantoine1995@gmail.com>> (he/him)
+* [anonrig](https://github.com/anonrig) -
+  **Yagiz Nizipli** <<yagiz@nizipli.com>> (he/him)
 * [apapirovski](https://github.com/apapirovski) -
   **Anatoli Papirovski** <<apapirovski@mac.com>> (he/him)
+* [benjamingr](https://github.com/benjamingr) -
+  **Benjamin Gruenbaum** <<benjamingr@gmail.com>>
 * [BridgeAR](https://github.com/BridgeAR) -
   **Ruben Bridgewater** <<ruben@bridgewater.de>> (he/him)
 * [cjihrig](https://github.com/cjihrig) -