Fix code examples for parental reentry buddy

Why is this change being made?

I noticed a typo and that the code wasn't spaced out correctly for the Parental Rentry Buddy section of the handbook.

This MR adjusts the code layout and fixed the typo.

Current View - Click to expand

Updated view - Click to expand

Author Checklist

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• Added a description to this MR explaining the reasons for the proposed change, per say why, not just what
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