Doc updates for AFAR V (#875)

* Doc updates for AFAR V

* doc updates

* Updating All AFAR history

* updating table with --output-format

* updating doc for yaml and json support

* Update source/docs/pc_sampling.md

* Update README.md

* Update source/docs/pc_sampling.md

Co-authored-by: Vladimir Indic <139573562+vlaindic@users.noreply.github.com>

* Update pc_sampling.md

---------

Co-authored-by: Ammar ELWazir <ammar.elwazir@amd.com>
Co-authored-by: Vladimir Indic <139573562+vlaindic@users.noreply.github.com>

source/docs/features.md

@@ -13,3 +13,4 @@
 - Simplified management of enabling/disabling one or more data collection services
 - Improved error checking and logging
 - Backwards ABI compatibility (goal)
+- PC Sampling(Beta Implementation)