Update pr assignment config (#16175)

Author: raych1

.github/pull_request_assignment.yml

@@ -54,6 +54,7 @@
       - "specification/network/**"
     reviewers:
       - lirenhe
+      - raych1
 
 
 - rule:
@@ -68,7 +69,7 @@
 
 
 - rule:
-    paths: "specification/@(resources|powerplatform|appplatform|deviceupdate)/**"
+    paths: "specification/@(resources|powerplatform|appplatform|deviceupdate|servicelinker)/**"
     reviewers:
       - raych1
 
@@ -145,12 +146,6 @@
     reviewers:
       - weidongxu-microsoft
 
-- rule:
-    paths:
-      - "specification/servicelinker/**"
-    reviewers:
-      - raych1
-      
 - rule:
     paths:
       - "specification/keyvault/**"