Update bgp-policy.md

docs/bgp-policy.md

@@ -174,7 +174,7 @@ spec:
 
 - Only an IPv4 address can be used as the BGP Identifier (BGP router ID). For IPv4-only or dual-stack Kubernetes clusters,
   the Node's IPv4 address is used as the BGP router ID, ensuring uniqueness. For IPv6-only Kubernetes clusters without a
-  Node IPv4 address, the router ID must be specified in the Node annotation `node.antrea.io/bgp-router-id`. If not
+  Node IPv4 address, the router ID could be specified in the Node annotation `node.antrea.io/bgp-router-id`. If not
   present, an IPv4 address will be generated by hashing the Node name and updated to the Node annotation
   `node.antrea.io/bgp-router-id`. If the annotation is present, its value will be used as the BGP router ID.
 - The routes received from remote BGP peers will not be installed. Therefore, you must ensure that the path from Pods