Correct rocprofv3 usage instructions (#2925)

* Correct rocprofv3 usage

* Apply suggestion from @SwRaw

* Apply suggestion from @SwRaw

* Update .gitignore

.gitignore

@@ -1 +1,2 @@
 .cline_storage
+/projects/hip/_build

projects/hip/docs/how-to/performance_guidelines.rst

@@ -27,10 +27,10 @@ Follow this systematic approach to optimize GPU performance:
 
    .. code-block:: bash
 
-      rocprofv3 --stats ./your_application
+      rocprofv3 --stats --<tracing_option> -- <application_path>
 
    Collect metrics on kernel execution time, memory bandwidth, occupancy, and
-   CU utilization.
+   CU utilization. For more details on using ``rocprofv3`` for application tracing and profiling, see :doc:`rocprofv3 documentation <rocprofiler-sdk:how-to/using-rocprofv3>`.
 
 2. **Analyze metrics to identify bottlenecks**