[PATCH BlueZ 3/3] doc: Mark WakeAllowed as optional

WakeAllowed is only present on devices with a profile that supports
wake configuration, and now only when the adapter itself is able to
wake the host. Mark it optional like the other conditional Device1
properties and document when it is present.
---
 doc/org.bluez.Device.rst | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/doc/org.bluez.Device.rst b/doc/org.bluez.Device.rst
index 3e6a30aaf..8b6b9e866 100644
--- a/doc/org.bluez.Device.rst
+++ b/doc/org.bluez.Device.rst
@@ -330,11 +330,14 @@ Examples:
 :bluetoothctl: > block [dev]
 :bluetoothctl: > unblock [dev]
 
-boolean WakeAllowed [readwrite]
-```````````````````````````````
+boolean WakeAllowed [readwrite, optional]
+`````````````````````````````````````````
 
 If set to true this device will be allowed to wake the host from system suspend.
 
+Only present on devices with a profile that supports wake configuration (e.g.
+HID) and when the host controller is configured to be able to wake the system.
+
 Examples:
 
 :bluetoothctl: > wake [dev] [on/off]
-- 
2.55.0