Update Documentation for Guest Dashboard

[smcnab1]

Tasks

• Add area on README.md for full implementation guidelines
• Add extra automations to page
• Add extra input_boolean to README.md
• Look at adding feature README for full documentation.
• Update Node-RED automations with input boolean to stop automations.

[smcnab1]

Entities to Add

• sensor.bring_with_you (home page)

Add-On to Add

• Stack in Card by RomRider