Make parameter descriptions consistent in faceting.adoc

[cdrini]

Description

The parameters descriptions in the faceting docs begin inconsistently. Some re-state the parameter names, some start with "This parameter...", etc.

Solution

Make them begin consistently and concisely by starting directly with the description of what it does.

Tests

Did not run tests.

Checklist

Please review the following and check all that apply:

• [x] I have reviewed the guidelines for How to Contribute and my code conforms to the standards described there to the best of my ability.
• NA: I have created a Jira issue and added the issue ID to my pull request title.
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• [x] I have developed this patch against the main branch.
• NA I have run ./gradlew check.
• NA I have added tests for my changes.
• NA I have added documentation for the Reference Guide

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[epugh]

hey @cdrini do you want to take another spin though this PR and finalize some of the changes? Then I'd love to merge this!

[cdrini]

Ah apologies for the delay! Will update this week :+1:

[cdrini]

Thanks for the review @cpoerschke ! Ok @epugh , this should be ready to go now!