Update README.md (#3883)

Corrected the spell check line 7

Author: medikondasoniya

docs/config_examples/multicluster/default-mode/ServiceTypeLB/README.md

@@ -4,7 +4,7 @@ Processing of serviceType LB resource from external clusters including HA peer c
 
 ## Configuration
 
-To enable discovery of service Type LB resources from primary cluster, set serviceTypeLBDiscovery to true for cluster through extendedSpec in configmap
+To enable the discovery of service Type LB resources from primary cluster, set serviceTypeLBDiscovery to true for cluster through extendedSpec in configmap
 
 `config`