DoxyGen: Enhanced RTOS2/RTX5 documentation of memory sections.
The memory sections needs to be placed into contiguous memory.

Change-Id: I2c853277b107faf5fd67846128f6922a7d2d72f5
diff --git a/CMSIS/DoxyGen/RTOS2/src/cmsis_os2.txt b/CMSIS/DoxyGen/RTOS2/src/cmsis_os2.txt
index fb48cd3..5ac21da 100644
--- a/CMSIS/DoxyGen/RTOS2/src/cmsis_os2.txt
+++ b/CMSIS/DoxyGen/RTOS2/src/cmsis_os2.txt
@@ -363,6 +363,10 @@
 Memory Pool   | `.bss.os.mempool.cb`
 Message Queue | `.bss.os.msgqueue.cb`
 
+It must be assured that these sections are placed into contiguous memory. This can fail,
+i.e. sections end up being split over multiple memory segments, when assigning compilation
+units to memory segments, manually.
+
 The following code example shows how to create an OS object using static memory.
 
 <b> Code Example:</b>