Maintain legacy RTOS behavior before mbed-5

Fork of mbed-rtos by mbed official

Revision:
123:58563e6cba1e
Parent:
114:031a41d65add
--- a/rtx/TARGET_CORTEX_M/rt_Task.h	Wed Nov 09 12:22:14 2016 -0600
+++ b/rtx/TARGET_CORTEX_M/rt_Task.h	Mon Nov 14 17:14:42 2016 -0600
@@ -1,3 +1,6 @@
+
+/** \addtogroup rtos */
+/** @{*/
 /*----------------------------------------------------------------------------
  *      CMSIS-RTOS  -  RTX
  *----------------------------------------------------------------------------
@@ -81,3 +84,5 @@
 /*----------------------------------------------------------------------------
  * end of file
  *---------------------------------------------------------------------------*/
+
+/** @}*/