Fix basic example

Author: FWeinb

NTPClient.cpp

@@ -21,6 +21,8 @@
 
 #include "NTPClient.h"
 
+NTPClient::NTPClient() {}
+
 NTPClient::NTPClient(int timeOffset) {
   this->_timeOffset     = timeOffset;
 }

NTPClient.h

@@ -26,6 +26,7 @@ class NTPClient {
     void          sendNTPPacket(IPAddress _timeServerIP);
 
   public:
+    NTPClient();
     NTPClient(int timeOffset);
     NTPClient(const char* poolServerName);
     NTPClient(const char* poolServerName, int timeOffset);

examples/Basic/Basic.ino

@@ -6,7 +6,7 @@ const char *password = "<PASSWORD>";
 
 
 
-NTPClient timeClient();
+NTPClient timeClient;
 
 void setup(){
   Serial.begin(115200);