Merge pull request #51162 from maxwelldb/typo-fix-lb-gh43494

[GH#43494] OSP external load balancing module typo fix

Author: maxwelldb

modules/nw-osp-configuring-external-load-balancer.adoc

@@ -55,14 +55,14 @@ listen my-cluster-api-6443
     server my-cluster-master-2 192.0.2.2:6443 check
     server my-cluster-master-0 192.0.2.3:6443 check
     server my-cluster-master-1 192.0.2.1:6443 check
-listenmy-cluster-apps-443
+listen my-cluster-apps-443
         bind 0.0.0.0:443
         mode tcp
         balance roundrobin
         server my-cluster-worker-0 192.0.2.6:443 check
         server my-cluster-worker-1 192.0.2.5:443 check
         server my-cluster-worker-2 192.0.2.4:443 check
-listenmy-cluster-apps-80
+listen my-cluster-apps-80
         bind 0.0.0.0:80
         mode tcp
         balance roundrobin