Clarify Service Entry addresses behavior limitations

Signed-off-by: Faseela K <faseela.k@est.tech>

Author: kfaseela

networking/v1alpha3/service_entry.pb.go

@@ -482,7 +482,9 @@ message ServiceEntry {
   // service in the mesh. In other words, the sidecar will behave as a
   // simple TCP proxy, forwarding incoming traffic on a specified port to
   // the specified destination endpoint IP/host. Unix domain socket
-  // addresses are not supported in this field.
+  // addresses are not supported in this field. Note that the `addresses`
+  // API implies you can provide multiple addresses but there are limitations
+  // on it (e.g.: you cannot set VIP addresses regardless of the combination of ip families).
   // +kubebuilder:validation:MaxItems=256
   // +protoc-gen-crd:list-value-validation:MaxLength=64
   repeated string addresses = 2;