STAGE 2: Embedded devices revisions

[aturon]

Some organizational revisions and some sharpening of the text.

There are still a couple of placeholders that y'all need to flesh out:

• The final item for the pitch
• The looping video -- the plan here isn't entirely clear to me
• Finalizing the production usage section

[jamesmunns]

Hey @aturon, I am currently working on this content in another PR: #106.

Would you prefer I merge those changes here? If so I can close that PR, and rebase my changes on yours.

[aturon]

@jamesmunns Hah, you beat me to it! I don't have a strong preference for how the PRs are structured -- and please take the revisions here as suggestions :-)

[jamesmunns]

Hey @aturon, I've integrated your text and organizational changes into PR #106. Could you please review that branch (and screenshots) for completeness?

The one change I left out was changing from 2 space indent to 4 space indent. If you'd like that to happen, I can make that in a commit by itself.

If you're alright with the changes there, I'd like to close this PR without merging.

[aturon]

Closing in favor of #106