Add sample app for asynchronous execution

Signed-off-by: Jan Eilers <jan.eilers@arm.com>
Change-Id: I6d903c721d71a28bc02e4e98aaa813fb9159b678
diff --git a/samples/examples.dox b/samples/examples.dox
index e0b0ea3..4a41e30 100644
--- a/samples/examples.dox
+++ b/samples/examples.dox
@@ -38,4 +38,12 @@
 @example CustomMemoryAllocatorSample.cpp
 **/
 
+/**
+Yet another variant of the SimpleSample application. In this little sample app you will be shown how to run a
+network multiple times asynchronously.
+
+@note This is currently an experimental interface
+@example AsyncExecutionSample.cpp
+**/
+
 }