How to use Arduino IDE with ESP8266 Support

How to use Arduino IDE with ESP8266 SupportWhen you download and install Arduino IDE already.( Now is Arduino IDE version 1.6.5 )Link to download https://www.arduino.cc/en/Main/SoftwareThen Open Arduino IDE1. Go to menu File  ->  Preferences Copy This link   http://arduino.esp8266.com/stable/package_esp8266com_index.json and paste to Additional Board Manager URLs Then OK2.Go to Menu Tools -> Board -> Boards Manager...You will see Boards [...]