Fix doxygen warnings

src/plugins/simulator/fsx_config/simulatorfsxconfig.h

@@ -20,6 +20,9 @@ namespace BlackSimPlugin
     namespace Fsx
     {
 
+        /*!
+         * Window for setting up the FSX plugin.
+         */
         class CSimulatorFsxConfig :  public QObject, public BlackGui::IPluginConfig
         {
             Q_OBJECT

src/plugins/simulator/xplane_config/simulatorxplaneconfig.h

@@ -19,6 +19,10 @@ namespace BlackSimPlugin
 {
     namespace XPlane
     {
+
+        /*!
+         * Setting for XBus.
+         */
         struct XBusServer : public BlackCore::CSettingTrait<QString>
         {
             //! \copydoc BlackCore::CSetting::key
@@ -28,7 +32,7 @@ namespace BlackSimPlugin
             static QString defaultValue() { return QStringLiteral("session"); }
         };
 
-        /**
+        /*!
          * Config plugin for the X-Plane plugin.
          */
         class CSimulatorXPlaneConfig : public QObject, public BlackGui::IPluginConfig