cfg: update sig-docs-es OWNERS_ALIASES

Author: raelga

OWNERS_ALIASES

@@ -84,11 +84,13 @@ aliases:
   sig-docs-es-owners: # Admins for Spanish content
     - electrocucaracha
     - krol3
+    - raelga
     - ramrodo
   sig-docs-es-reviews: # PR reviews for Spanish content
     - electrocucaracha
     - jossemarGT
     - krol3
+    - raelga
     - ramrodo
   sig-docs-fr-owners: # Admins for French content
     - perriea