OTBR integration: usually doesn't need to be installed manually (#30948)

* OTBR integration: usually doesn't need to be installed manually

- add links to procedures where the OTBR integration is installed by the OTBR add-on
- addresses feedback from #30867

* Fix typo

* Add links to multiprotocol procedures

* Remove links

Co-authored-by: Stefan Agner <stefan@agner.ch>

* Update source/_integrations/otbr.markdown

Co-authored-by: Stefan Agner <stefan@agner.ch>

* Update source/_integrations/otbr.markdown

Co-authored-by: Stefan Agner <stefan@agner.ch>

---------

Co-authored-by: Stefan Agner <stefan@agner.ch>

source/_integrations/otbr.markdown

@@ -12,6 +12,14 @@ ha_config_flow: true
 ---
 
 The Open Thread Border Router integration allows calling an Open Thread Border Router's REST API from Python and via WebSocket.
-The integration is automatically set up when the "Silicon Labs Multiprotocol" add-on is installed.
+
+This integration is installed automatically when the **Open Thread Border Router** add-on is installed. For  Home Assistant Yellow or SkyConnect refer to the following procedures:
+
+- [Enabling Thread on Home Assistant Yellow](https://yellow.home-assistant.io/procedures/enable-thread/)
+- [Enabling Thread on Home Assistant SkyConnect](https://skyconnect.home-assistant.io/procedures/enable-thread/)
+
+The integration is also installed automatically when enabling the experimental **Silicon Labs Multiprotocol** support.
+
+Installing this integration manually is an advanced use case, for example if you run your own border router. If you do have such a use case, follow these steps:
 
 {% include integrations/config_flow.md %}