Update coredns-custom.md

Update Rewrite DNS YAML format

Author: mutazn

articles/aks/coredns-custom.md

@@ -43,15 +43,15 @@ metadata:
   namespace: kube-system
 data:
   test.server: | # you may select any name here, but it must end with the .server file extension
-  <domain to be rewritten>.com:53 {
-  log
-  errors
-  rewrite stop {
-    name regex (.*)\.<domain to be rewritten>.com {1}.default.svc.cluster.local
-    answer name (.*)\.default\.svc\.cluster\.local {1}.<domain to be rewritten>.com
-  }
-  forward . /etc/resolv.conf # you can redirect this to a specific DNS server such as 10.0.0.10, but that server must be able to resolve the rewritten domain name
-}
+    <domain to be rewritten>.com:53 {
+    log
+    errors
+    rewrite stop {
+      name regex (.*)\.<domain to be rewritten>.com {1}.default.svc.cluster.local
+      answer name (.*)\.default\.svc\.cluster\.local {1}.<domain to be rewritten>.com
+    }
+    forward . /etc/resolv.conf # you can redirect this to a specific DNS server such as 10.0.0.10, but that server must be able to resolve the rewritten domain name
+    }
 ```
 
 > [!IMPORTANT]