docs: link Home Assistant custom component from README (#46)

* Initial plan

* docs: add Home Assistant component link to README

Co-authored-by: deviantintegral <255023+deviantintegral@users.noreply.github.com>

* docs: move screenshot above HA link in README

Co-authored-by: deviantintegral <255023+deviantintegral@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: deviantintegral <255023+deviantintegral@users.noreply.github.com>

Author: Copilot

README.md

@@ -8,6 +8,8 @@ Async Python library for controlling Dimplex, Faber, and Real Flame fireplaces v
 
 ![FlameConnect TUI](images/flameconnect-0.1.0.png)
 
+> 🏠 Looking for a Home Assistant integration? Try the [flame_connect_ha custom component](https://github.com/deviantintegral/flame_connect_ha).
+
 ## Installation
 
 ```bash