Add 0.22 release note for submariner-io/submariner-operator/pull/3713

Signed-off-by: Yossi Boaron <yboaron@redhat.com>

Author: yboaron

src/content/community/releases/_index.en.md

@@ -9,6 +9,7 @@ weight = 40
 
 ### New features
 
+* Submariner now allows custom annotations to be configured for the Gateway LoadBalancer service, useful for cloud-specific settings.
 * Submariner now uses nftables as the default packet filter driver.
 * The VXLAN cable driver now supports IPv6 and dual-stack environments.
 * Submariner now supports environments where OVN-Kubernetes IPsec is enabled.