doc: add pronoun for fhinkel

PR-URL: nodejs#16069
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Reviewed-By: Myles Borins <myles.borins@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>

Author: fhinkel

README.md

@@ -243,7 +243,7 @@ For more information about the governance of the Node.js project, see
 * [evanlucas](https://github.com/evanlucas) -
 **Evan Lucas** <evanlucas@me.com> (he/him)
 * [fhinkel](https://github.com/fhinkel) -
-**Franziska Hinkelmann** <franziska.hinkelmann@gmail.com>
+**Franziska Hinkelmann** <franziska.hinkelmann@gmail.com> (she/her)
 * [Fishrock123](https://github.com/Fishrock123) -
 **Jeremiah Senkpiel** <fishrock123@rocketmail.com>
 * [indutny](https://github.com/indutny) -
@@ -349,7 +349,7 @@ For more information about the governance of the Node.js project, see
 * [evanlucas](https://github.com/evanlucas) -
 **Evan Lucas** <evanlucas@me.com> (he/him)
 * [fhinkel](https://github.com/fhinkel) -
-**Franziska Hinkelmann** <franziska.hinkelmann@gmail.com>
+**Franziska Hinkelmann** <franziska.hinkelmann@gmail.com> (she/her)
 * [firedfox](https://github.com/firedfox) -
 **Daniel Wang** <wangyang0123@gmail.com>
 * [Fishrock123](https://github.com/Fishrock123) -