Fix Active Record README formatting [ci-skip]

[p8]

This fixes the indentation of the example code of the first bullet point. The "Learn more" link was moved to the bottom of the bullet point, similar to the other bullet points.

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• This Pull Request is related to one change. Changes that are unrelated should be opened in separate PRs.
• Commit message has a detailed description of what changed and why. If this PR fixes a related issue include it in the commit message. Ex: [Fix #issue-number]
• Tests are added or updated if you fix a bug or add a feature.
• CHANGELOG files are updated for the changed libraries if there is a behavior change or additional feature. Minor bug fixes and documentation changes should not be included.