ESP8266

Can someone point me to the readme file for ESP8266_cloud

Where did you get it from? I assume you googled "ESP8266_cloud" and found [this link?](GitHub - marcoschwartz/aREST: A RESTful environment for Arduino ?)

The example sketch says to read the README file

"This a simple example of the aREST Library for the ESP8266 WiFi chip.
This example illustrate the cloud part of aREST that makes the board accessible from anywhere
See the README file for more details.

Written in 2015 by Marco Schwartz under a GPL license."

I cannot find the readme file

For whatever reason my link was broken. But still, what exactly is wrong with the readme file that a quick google search on "ESP8266_cloud" yielded? I'm sure you figured out the git repo is: GitHub - marcoschwartz/aREST: A RESTful environment for Arduino

and there you find the readme: aREST/README.md at master · marcoschwartz/aREST · GitHub

Can't believe I did this for you...