Nicer Doxygen categorization

include/sta/rtos/event.hpp

@@ -9,18 +9,12 @@
 #include <cmsis_os2.h>
 #include <sta/event.hpp>
 
-/**
- * @defgroup STA_RTOS_EVENT Event
- * @ingroup STA_RTOS_API
- * @brief CMSIS RTOS2 Event.
- */
-
 namespace sta
 {
 	/**
 	 * @brief Implementation of Event using CMSIS RTOS2.
 	 *
-	 * @ingroup STA_RTOS_EVENT
+	 * @ingroup STA_RTOS_Sync
 	 */
 	class RtosEvent : public Event
 	{