doc: add sxa GPG key (ed25519)

Signed-off-by: Stewart X Addison <sxa@ibm.com>
PR-URL: #64193
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Richard Lau <richard.lau@ibm.com>

Author: sxa

README.md

@@ -805,6 +805,8 @@ Primary GPG keys for Node.js Releasers (some Releasers sign with subkeys):
   `C82FA3AE1CBEDC6BE46B9360C43CEC45C17AB93C`
 * **Ruy Adorno** <<ruyadorno@hotmail.com>>
   `108F52B48DB57BB0CC439B2997B01419BD92F80A`
+* **Stewart X Addison** <<sxa@ibm.com>>
+  `655F3B5C1FB3FA8D1A0CA6BDE4A7D232B936D2FD`
 * **Ulises Gascón** <<ulisesgascongonzalez@gmail.com>>
   `A363A499291CBBC940DD62E41F10027AF002F8B0`
 
@@ -822,6 +824,7 @@ gpg --keyserver hkps://keys.openpgp.org --recv-keys 8FCCA13FEF1D0C2E91008E09770F
 gpg --keyserver hkps://keys.openpgp.org --recv-keys 890C08DB8579162FEE0DF9DB8BEAB4DFCF555EF4 # Rafael Gonzaga
 gpg --keyserver hkps://keys.openpgp.org --recv-keys C82FA3AE1CBEDC6BE46B9360C43CEC45C17AB93C # Richard Lau
 gpg --keyserver hkps://keys.openpgp.org --recv-keys 108F52B48DB57BB0CC439B2997B01419BD92F80A # Ruy Adorno
+gpg --keyserver hkps://keys.openpgp.org --recv-keys 655F3B5C1FB3FA8D1A0CA6BDE4A7D232B936D2FD # Stewart X Addison
 gpg --keyserver hkps://keys.openpgp.org --recv-keys A363A499291CBBC940DD62E41F10027AF002F8B0 # Ulises Gascón
 ```