[rocprofiler-systems] Update attach documentation for clarity (#4375)

## Motivation

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Edits to documentation change
#4354.

## Technical Details

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Updating "rocattach" documentation, for clarity. 

## JIRA ID

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Resolves SWDEV-12345). -->
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## Test Plan

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## Submission Checklist

- [x] Look over the contributing guidelines at
https://github.com/ROCm/ROCm/blob/develop/CONTRIBUTING.md#pull-requests.

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Co-authored-by: Pratik Basyal <pratik.basyal@amd.com>

Author: dgaliffiAMD

projects/rocprofiler-systems/docs/how-to/attaching-to-running-process.rst

@@ -80,7 +80,7 @@ Command-line options
    using tools like ``ps``, ``pgrep``, or ``top``.
 
 ``-o, --output PATH``
-   Specifies the output directory for profiling the results. If not specified,
+   Specifies the directory for writing the output of the profiling results. If not specified, the
    results are written to the default location (``rocprof-sys-output/``).
 
 ``-F, --format FORMAT[,FORMAT,...]``