Updated documentation

[Rudis1261]

• Adding some instructions on how to get started.
• Home assistant example configuration and dashboard yaml files.
• Moved firmware into a specific folder and reorganized it slightly.

[Rudis1261]

@jackkitley 😬 Hope you like these updates, lemme know

[jackkitley]

@Rudis1261 Thank you for this. Whats your profession ?

[Rudis1261]

Awesome, if you are happy with the updates you can merge them / approve the pull request.

I am a web developer by trade 😬