typo fix

README.md

@@ -45,7 +45,7 @@ int main(int argc, char** argv) {
     signal(SIGINT, signalHandler);
 
     /* init the server */
-    UA_Server *server = UA_Server_new(NULL);
+    UA_Server *server = UA_Server_new();
     UA_Server_addNetworkLayer(server,
         ServerNetworkLayerTCP_new(UA_ConnectionConfig_standard, PORT));
     UA_Server_setLogger(server, Logger_Stdout_new());
@@ -75,7 +75,7 @@ int main(int argc, char** argv) {
 #include "open62541.h"
 
 int main(int argc, char *argv[]) {
-    UA_Client *client = UA_Client_new();
+    UA_Client *client = UA_Client_new(NULL);
     UA_ClientNetworkLayer nl = ClientNetworkLayerTCP_new(UA_ConnectionConfig_standard);
     UA_StatusCode retval = UA_Client_connect(client, UA_ConnectionConfig_standard, nl,
                                              "opc.tcp://localhost:16664");