Adding missing doc for parameters

[sofia-tekdatum]

Add missing documentation to parameter to fix failing github action.

Before
After

The action still fails but now for another reason unrelated to our code (s3 bucket voltrondata-labs-datasets not found).

[github-actions]

Thanks for opening a pull request!

If this is not a minor PR. Could you open an issue for this pull request on GitHub? https://github.com/apache/arrow/issues/new/choose

Opening GitHub issues ahead of time contributes to the Openness of the Apache Arrow project.

Then could you also rename the pull request title in the following format?

GH-${GITHUB_ISSUE_ID}: [${COMPONENT}] ${SUMMARY}

or

MINOR: [${COMPONENT}] ${SUMMARY}

See also:

• Other pull requests
• Contribution Guidelines - Contributing Overview

[argmarco-tkd]

LGTM - ship it!