Update HEOS for discovery info (#73)

Adjusted information regarding discovery, and manual IP configuration
changes in music-assistant/server#3056
Also adjusted zone notes a bit

Author: OzGav

docs/player-support/heos.md

@@ -4,18 +4,18 @@ Music Assistant has support for Denon & Marantz devices with [HEOS](https://www.
 
 ## Features
 
+- HEOS devices are auto detected by Music Assistant
 - HEOS devices will play in perfect sync when grouped
 - MA will follow group being created/updated/removed from the HEOS app
 - MA will show metadata if the player is playing non-MA content
-- New HEOS devices automatically get detected if the provider is already configured
 
 ## Settings
 
 In addition to the [Individual Player Settings](../settings/individual-player.md) the HEOS provider also some unique settings in the `Generic settings` section.
 
-- <b>Main controller hostname or IP address.</b> This is the HEOS device that will be act as the main controller. The main controller handles all devices in the network. It is recommended to use a wired device as the connection point.
+- <b>Main controller hostname or IP address.</b> This is the HEOS device that will be act as the main controller, it is not mandatory. This setting can be used to force MA to use a specific device as the controller.
 
 ## Known Issues / Notes
 
 - The HEOS app does not show any metadata when playing from MA due to API limitations
-- Playback to zone 2 is not supporyed due to API limitations
+- Playback to additional zones is supported, but they cannot be turned on/source selected from MA. This needs to be done externally (via Home Assistant for example)