changed readme

README.md

-# wifi credentials
-need to create wifi_credentials.h from template.h
+### Steps to run it
+
+#### create wifi_credentials.h
+
+__TEMPLATE__
+```cpp
+#ifndef __WIFI_CREDENTIALS_H
+#define __WIFI_CREDENTIALS_H
+
+#ifndef STASSID
+#define STASSID "ssid"
+#define STAPSK  "key"
+#endif
+
+#endif // __WIFI_CREDENTIALS_H
+```
+
+#### platformio.ini
+change IP of esp8266 accordingly
+IP gets printed on Serial Monitor after first Upload

src/main.cpp

 
 
 void loop() {
+  Serial.println("");
   ArduinoOTA.handle();
-
   
   server.handleClient();
 }