Add copy edits based on suggestions

[joaniefromtheblock]

Closes #507

• Updates style suggestions - Apply suggestions (that are still relevant) from Mike's review.

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Name	Status	Preview	Comments	Updated (UTC)
doc-teku	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jan 25, 2024 9:38pm

[joaniefromtheblock]

Thanks @alexandratran and @mjsmike62. Applied the changes. That was a helpful exercise for applying the style guide.