Fix TBB-Async-Sycl README format (#2415)

Signed-off-by: Fong Jian Tan <[email protected]>

Author: fongjiantan

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

@@ -58,40 +58,50 @@ To learn more about the extensions, see the
 [Using Visual Studio Code with Intel® oneAPI Toolkits User Guide](https://www.intel.com/content/www/us/en/develop/documentation/using-vs-code-with-intel-oneapi/top.html).
 
 ### On a Linux System
-    * Build tbb-async-sycl program
-      cd tbb-async-sycl &&
-      mkdir build &&
-      cd build &&
-      cmake .. &&
-      make VERBOSE=1
-
-    * Run the program
-      make run
-
-    * Clean the program
-      make clean
+* Build tbb-async-sycl program
+  ```
+  cd tbb-async-sycl &&
+  mkdir build &&
+  cd build &&
+  cmake .. &&
+  make VERBOSE=1
+  ```
+
+* Run the program
+  ```
+  make run
+  ```
+
+* Clean the program
+  ```
+  make clean
+  ```
 
 ### On a Windows System
 
 #### Command line using MSBuild
-     * MSBuild tbb-async-sycl.sln /t:Rebuild /p:Configuration="debug"
+```
+MSBuild tbb-async-sycl.sln /t:Rebuild /p:Configuration="debug"
+```
 
 #### Visual Studio IDE
-     * Open Visual Studio 2017
-     * Select Menu "File > Open > Project/Solution", find "tbb-async-sycl" folder and select "tbb-async-sycl.sln"
-     * Select Menu "Project > Build" to build the selected configuration
-     * Select Menu "Debug > Start Without Debugging" to run the program
+* Open Visual Studio 2017
+* Select Menu "File > Open > Project/Solution", find "tbb-async-sycl" folder and select "tbb-async-sycl.sln"
+* Select Menu "Project > Build" to build the selected configuration
+* Select Menu "Debug > Start Without Debugging" to run the program
 
 ## Running the Sample
 
 ### Example of Output
 
-    start index for GPU = 0; end index for GPU = 8
-    start index for CPU = 8; end index for CPU = 16
-    Heterogenous triad correct.
-    c_array: 0 1.5 3 4.5 6 7.5 9 10.5 12 13.5 15 16.5 18 19.5 21 22.5
-    c_gold : 0 1.5 3 4.5 6 7.5 9 10.5 12 13.5 15 16.5 18 19.5 21 22.5
-    Built target run
+```
+start index for GPU = 0; end index for GPU = 8
+start index for CPU = 8; end index for CPU = 16
+Heterogenous triad correct.
+c_array: 0 1.5 3 4.5 6 7.5 9 10.5 12 13.5 15 16.5 18 19.5 21 22.5
+c_gold : 0 1.5 3 4.5 6 7.5 9 10.5 12 13.5 15 16.5 18 19.5 21 22.5
+Built target run
+```
 
 ### Troubleshooting
 If an error occurs, troubleshoot the problem using the Diagnostics Utility for Intel® oneAPI Toolkits.