* Thread: add HA Thread network when third-party Thread nw is present
- Add steps on how to add a Home Assistant Thread network
- when there is already a third party Thread network present
* Fix links
* Fix last steps
* Remove limitation imnformation on joining networks
- add reference to section on combining Thread networks
* Apply suggestions from code review
Co-authored-by: Stefan Agner <stefan@agner.ch>
* Update intro to HA border router section
* Tweak
* Apply suggestions from code review
Co-authored-by: Stefan Agner <stefan@agner.ch>
* Add link to Matter procedure
---------
Co-authored-by: Stefan Agner <stefan@agner.ch>