docs: improve wording

[sanderruitenbeek]

What this PR does

Improves readability

Which issue(s) this PR fixes or relates to

N/A

Checklist

• Tests updated.
• Documentation added.
• CHANGELOG.md updated - the order of entries should be [CHANGE], [FEATURE], [ENHANCEMENT], [BUGFIX]. If changelog entry is not needed, please add the changelog-not-needed label to the PR.
• about-versioning.md updated with experimental features.

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Note

Low Risk
Documentation-only change with no impact on runtime behavior or configuration semantics.

Overview
Tweaks wording in the Kafka ingest-storage documentation to fix a minor grammar issue (“writing to directly” → “writing directly”) in the -distributor.remote-timeout recommendation.

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[tacole02]

Thank you!