Extend sync benchmark CLI parameters (#20844)

docs/articles_en/learn_openvino/openvino_samples/cpp_sample_sync_benchmark.md

@@ -70,7 +70,7 @@ Running
 
 .. code-block:: sh
 
-   sync_benchmark <path_to_model>
+   sync_benchmark <path_to_model> <device_name>(default: CPU)
 
 
 To run the sample, you need to specify a model:

docs/articles_en/learn_openvino/openvino_samples/python_sample_sync_benchmark.md

@@ -67,7 +67,7 @@ Running
 
 .. code-block:: sh
 
-   python sync_benchmark.py <path_to_model>
+   python sync_benchmark.py <path_to_model> <device_name>(default: CPU)
 
 
 To run the sample, you need to specify a model:
@@ -138,4 +138,4 @@ See Also
 * :doc:`Model Downloader <omz_tools_downloader>`
 * :doc:`Convert a Model <openvino_docs_MO_DG_Deep_Learning_Model_Optimizer_DevGuide>`
 
-@endsphinxdirective
+@endsphinxdirective