Refactor API reference docs (#1125)

* Refactor API reference docs

* refactor API ref docs

* corrections

* consistent naming

* updates

* Update CHANGELOG.md

* improving SEO

* improving SEO

* Update using-rocprofv3.rst

* Update counter_collection_services.md

* Update using-rocprofv3.rst

* Fixing doc build errors

* changelogs and some formatting issues

---------

Co-authored-by: Gopesh Bhardwaj <gopesh.bhardwaj@amd.com>

[ROCm/rocprofiler-sdk commit: 4204042ac6]

projects/rocprofiler-sdk/source/docs/_toc.yml.in

@@ -16,11 +16,17 @@ subtrees:
   - caption: API reference
     entries:
     - file: api-reference/buffered_services
+      title: Buffered services
     - file: api-reference/callback_services
+      title: Callback tracing services
     - file: api-reference/counter_collection_services
+      title: Counter collection services
     - file: api-reference/intercept_table
+      title: Runtime intercept tables
     - file: api-reference/pc_sampling
+      title: PC sampling
     - file: api-reference/tool_library
+      title: Tool library
     - file: _doxygen/html/index
       title: API library
   - caption: Conceptual