doc: add HarshithaKP to collaborators

Fixes: #34242

PR-URL: #34417
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Yongsheng Zhang <zyszys98@gmail.com>

Author: HarshithaKP

README.md

@@ -311,6 +311,8 @@ For information about the governance of the Node.js project, see
 **Gireesh Punathil** <gpunathi@in.ibm.com> (he/him)
 * [guybedford](https://github.com/guybedford) -
 **Guy Bedford** <guybedford@gmail.com> (he/him)
+* [HarshithaKP](https://github.com/HarshithaKP) -
+**Harshitha K P** <harshitha014@gmail.com> (she/her)
 * [hashseed](https://github.com/hashseed) -
 **Yang Guo** <yangguo@chromium.org> (he/him)
 * [himself65](https://github.com/himself65) -