Fill in "Purpose" Section of both README files.

Signed-off-by: root <[email protected]>

Author: root

Libraries/oneTBB/tbb-async-sycl/README.md

@@ -9,7 +9,8 @@ This sample illustrates how computational kernel can be split for execution betw
 | Time to complete                  | 15 minutes
 
 ## Purpose
-  
+The purpose of this sample is to show how during execution, a computational kernel can be split be between CPU and GPU using TBB Flow Graph asynchronous node and functional node.
+
 ## Key Implementation Details 
 TBB Flow Graph and DPC++ implementation explained. 
 

Libraries/oneTBB/tbb-task-sycl/README.md

@@ -9,7 +9,7 @@ This sample illustrates how 2 TBB tasks can execute similar computational kernel
 | Time to complete                  | 15 minutes
 
 ## Purpose
-
+The Purpose of this sample is to show how similar computational kernels can be executed by two TBB tasks with one excuting on SYCL code and another on TBB code. 
 
 ## Key Implementation Details 
 The implementation based on TBB tasks and SYCL explained.