Add note regarding device support for Russound integrations (#34183)

* refact: add note regarding device support for Russound integrations

* refact: replace device support notes with sections

* Tiny markdown tweak

---------

Co-authored-by: c0ffeeca7 <38767475+c0ffeeca7@users.noreply.github.com>

source/_integrations/russound_rio.markdown

@@ -18,4 +18,20 @@ The `russound_rio` {% term integration %} allows you to control Russound devices
 
 The platform automatically discovers all enabled zones and sources. Each zone is added as a media player device with the enabled sources available as inputs. Media information is supported if the selected source reports it.
 
+## Supported devices
+
+This integration allows you to connect the following controllers:
+
+- Russound MBX-PRE
+- Russound MBX-AMP
+- Russound MCA-C3
+- Russound MCA-C5
+- Russound MCA-66
+- Russound MCA-88
+- Rusosund MCA-88x
+- Russound XSource
+- Russound XZone4
+- Russound XZone70V
+- Russound XStream-X5
+
 {% include integrations/config_flow.md %}

source/_integrations/russound_rnet.markdown

@@ -20,6 +20,16 @@ This has initially been tested against a Russound CAV6.6 unit with six zones and
 
 Connecting to the Russound device is only possible by TCP, you can make use of a TCP to Serial gateway such as [tcp_serial_redirect](https://github.com/pyserial/pyserial/blob/master/examples/tcp_serial_redirect.py)
 
+## Supported devices
+
+This integration allows you to connect the following controllers:
+
+- Russound ACA-E5
+- Russound CAS44
+- Russound CAA66
+- Russound CAM6.6
+- Russound CAV6.6
+
 To add an {% term integration %} to your installation, add the following to your {% term "`configuration.yaml`" %} file.
 {% include integrations/restart_ha_after_config_inclusion.md %}