Update tutorial-compaction.md to change an unclear statement

[Vespira]

Unclear statement on the explanation of tuningConfig section.

Description

Tiny PR just to modify an unclear statement in the tutorial documentation section about Segment compaction task.

Rephrased a little bit sentence

---

This PR has:

• been self-reviewed.

[kfaraz]

Thanks for the changes @Vespira .
But I think the old statement is probably easier to understand, especially if you read it with the statement right after.

In this tutorial example, only one compacted segment will be created per hour, as each hour has less rows than the 5000000 maxRowsPerSegment (note that the total number of rows is 39244).

[techdocsmith]

LGTM

[stale]

This pull request has been marked as stale due to 60 days of inactivity. It will be closed in 4 weeks if no further activity occurs. If you think that's incorrect or this pull request should instead be reviewed, please simply write any comment. Even if closed, you can still revive the PR at any time or discuss it on the dev@druid.apache.org list. Thank you for your contributions.

[FrankChen021]

Sorry for the late merge. Thank you for your first contribution on Druid @Vespira

[stale]

This issue is no longer marked as stale.