docs: eip service annotation - mention subnet discovery

Author: alebedev87

docs/guide/service/annotations.md

@@ -152,7 +152,7 @@ on the load balancer.
 
     !!!note
         - This configuration is optional, and you can use it to assign static IP addresses to your NLB
-        - You must specify the same number of eip allocations as load balancer subnets [annotation](#subnets)
+        - You must specify the same number of eip allocations as load balancer subnets ([annotation](#subnets) or [discovery](../../deploy/subnet_discovery.md))
         - NLB must be internet-facing
 
     !!!example

pkg/service/model_build_load_balancer.go

@@ -416,7 +416,7 @@ func (t *defaultModelBuildTask) buildLoadBalancerSubnets(ctx context.Context, sc
 		)
 	}
 
-	// for internet-facing Load Balancers, the subnets mush have at least 8 available IP addresses;
+	// for internet-facing Load Balancers, the subnets must have at least 8 available IP addresses;
 	// for internal Load Balancers, this is only required if private ip address is not assigned
 	var privateIpv4Addresses []string
 	ipv4Configured := t.annotationParser.ParseStringSliceAnnotation(annotations.SvcLBSuffixPrivateIpv4Addresses, &privateIpv4Addresses, t.service.Annotations)