SSID and credentials are kept in a separate file which is not included in GIT repository.
Create file credentials.h in src folder and add SSID and WiFi password.
e.g.:
#ifndef _CREDENTIALS_H_
#define _CREDENTIALS_H_
const char cstrSSID[] = "MyNetwork";
const char cstrPWD[] = "secret";
#endif /* _CREDENTIALS_H_ */