Update work with WiFi credentials

PR #16

examples/ota_basic/ota_basic.c

@@ -11,14 +11,11 @@
 #include "FreeRTOS.h"
 #include "task.h"
 #include "esp8266.h"
+#include "ssid_config.h"
 
 #include "ota-tftp.h"
 #include "rboot-ota.h"
 
-#if !defined(WIFI_SSID) || !defined(WIFI_PASS)
-#error "Please define macros WIFI_SSID & WIFI_PASS (here, or better in a local.h file at root level or in program dir."
-#endif
-
 void user_init(void)
 {
     sdk_uart_div_modify(0, UART_CLK_FREQ / 115200);