Update README.md

Author: springfall2008

README.md

@@ -30,3 +30,6 @@ If you want to buy me a beer then please use Paypal - [[email protected]](mailto:tdl
 - Click *Explore and download repositories* (bottom right), type 'Ge Cloud' in the search box, select the Predbat Repository, then click 'Download' to install the app.
 - Restart Home Assistant
 - Go to Integrations, click add and select 'GE Cloud'.
+- Enter a name for your Setup (e.g. Home) and your API key (create an API key inside Security settings on the GE Cloud web site)
+- If you only want to see one of the device types uncheck the others, otherwise leave them all enabled (if you don't have a device type that's okay)
+- Uncheck polling if you have an EMC, otherwise leave it set.