update format of a tcp ServiceEntry (#1237)

_docs/tasks/traffic-management-v1alpha3/egress-tcp.md

@@ -44,6 +44,8 @@ metadata:
   name: wikipedia-ext
 spec:
   hosts:
+  - wikipedia.org
+  addresses:
   - 91.198.174.192/27
   - 103.102.166.224/27
   - 198.35.26.96/27
@@ -51,9 +53,9 @@ spec:
   - 208.80.154.224/27
   ports:
   - number: 443
-    name: tcp
     protocol: TCP
-  discovery: NONE
+    name: tcp-port
+  resolution: NONE
 EOF
 ```