Fix #324: Improve phrasing for "You Might Not Need Redux" mention

[stennie]

• improve lead-in to "You Might Not Need Redux"
• remove unnecessary <BR>s
• add missing indent for code snippet

Fixes #324

Checklist:

• I have read the contributor's guide.
• I linked an issue in the previous section
• I have commented on the linked issue
• I was assigned the linked issue (not required)
• I have tested the change to the best of my ability against the sandbox or a local build.

Optional items:

• My change adds new text and requires a change to translations.
• My change requires a change to the documentation.
• I have submitted a PR to the documentation repo.
• I was not able to test... (explain below, e.g. you did not have permissions to test a specific feature)
• This change depends O-FISH Realm repository changes (explain below)

• Optional: Add any explanations here

Straightforward Markdown changes, but I'm following the steps in the O-FISH Contributor guide :).

[github-actions]

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[Sheeri]

Congratulations! 🎉 🙌 🎆 ㊗️

This PR is great and has been merged into the code. Thanks so much for contributing! If you'd like, you can request to work on another issue. We really appreciate your effort!