doc: move MylesBorins to TSC Emeritus

My availability has become smaller and smaller and I think for now the
best thing to do is to move to TSC Emeritus. Perhaps I'll have more
time to focus on Node.js Leadership again in the future, but for now
I think it's best to officially step back a bit.

So long, and thanks for all the modules o/

PR-URL: nodejs/node#43524
Reviewed-By: Richard Lau <[email protected]>
Reviewed-By: Ruben Bridgewater <[email protected]>
Reviewed-By: Antoine du Hamel <[email protected]>
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: Juan José Arboleda <[email protected]>
Reviewed-By: Trivikram Kamat <[email protected]>
Reviewed-By: Tobias Nießen <[email protected]>
Reviewed-By: Michael Dawson <[email protected]>
Reviewed-By: Gireesh Punathil <[email protected]>
Reviewed-By: Darshan Sen <[email protected]>
Reviewed-By: Franziska Hinkelmann <[email protected]>
Reviewed-By: Danielle Adams <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>

README.md

@@ -180,8 +180,6 @@ For information about the governance of the Node.js project, see
   **Matteo Collina** <<[email protected]>> (he/him)
 * [mhdawson](https://github.com/mhdawson) -
   **Michael Dawson** <<[email protected]>> (he/him)
-* [MylesBorins](https://github.com/MylesBorins) -
-  **Myles Borins** <<[email protected]>> (he/him)
 * [RaisinTen](https://github.com/RaisinTen) -
   **Darshan Sen** <<[email protected]>> (he/him)
 * [richardlau](https://github.com/richardlau) -
@@ -229,6 +227,8 @@ For information about the governance of the Node.js project, see
   **Mary Marchini** <<[email protected]>> (she/her)
 * [mscdex](https://github.com/mscdex) -
   **Brian White** <<[email protected]>>
+* [MylesBorins](https://github.com/MylesBorins) -
+  **Myles Borins** <<[email protected]>> (he/him)
 * [nebrius](https://github.com/nebrius) -
   **Bryan Hughes** <<[email protected]>>
 * [ofrobots](https://github.com/ofrobots) -