Merge pull request #283 from BJReplay/BJReplay-patch-1-update-readme

Update Readme: additional steps for new users

README.md

@@ -6,11 +6,17 @@ This application is not an official app affiliated with Polestar.
 
 This is the account that you also use in the polestar APP on your mobile phone try here to login if it works or not: https://polestarid.eu.polestar.com/PolestarLogin/login
 
+ ## Prerequisites
+
+ * HACS (Home Assistant Community Store) must be installed. If you haven't installed HACS yet, follow the [official HACS installation guide](https://hacs.xyz/docs/use/#getting-started-with-hacs).
 
 ## Add in HA Integration
 
-Add custom repository in HACS: https://github.com/pypolestar/polestar_api
-Search for integration 'polestar_api'
+* Add custom repository in HACS: https://github.com/pypolestar/polestar_api
+* Search for integration 'polestar_api' in HACS
+* Download the integration in HACS
+* Go to Settings, Integrations in Home Assistant
+* Add the Polestar API integration
 
 ### Fill the information