Fixes #31 default master protocol is https

Author: tsegismont

src/main/java/org/jgroups/protocols/kubernetes/KUBE_PING.java

@@ -60,7 +60,7 @@ public class KUBE_PING extends Discovery {
     @Property(description="Time (in millis) between operation attempts", systemProperty="KUBERNETES_OPERATION_SLEEP")
     protected long   operationSleep=1000;
 
-    @Property(description="http (default) or https. Used to send the initial discovery request to the Kubernetes server",
+    @Property(description="https (default) or http. Used to send the initial discovery request to the Kubernetes server",
       systemProperty="KUBERNETES_MASTER_PROTOCOL")
     protected String  masterProtocol="https";