doc: add 1ilsang to triage team

PR-URL: #57183
Reviewed-By: Daeyeon Jeong <[email protected]>
Reviewed-By: Jake Yuesong Li <[email protected]>
Reviewed-By: Chemi Atlow <[email protected]>
Reviewed-By: Jason Zhang <[email protected]>

Author: 1ilsang

README.md

@@ -733,6 +733,8 @@ maintaining the Node.js project.
 
 ### Triagers
 
+* [1ilsang](https://github.com/1ilsang) -
+  **Sangchul Lee** <<[email protected]>> (he/him)
 * [atlowChemi](https://github.com/atlowChemi) -
   **Chemi Atlow** <<[email protected]>> (he/him)
 * [Ayase-252](https://github.com/Ayase-252) -