Add SMS / TOTP to architecture diagram

[slifty]

@slifty makes me think we might need to include the SMS service into the version of an application "stack" diagram as well.

I'll test @bickelj thanks for the creds.

Originally posted by @jmergy in PhilanthropyDataCommons/auth#19 (comment)

[reefdog]

@slifty I did the rude thing of editing your message to reformat the quote.

Your original was formatted as a non-wrapping code block:

    @slifty makes me think we might need to include the SMS service into the version of an application "stack" diagram as well.

Which I converted to a proper blockquote:

@slifty makes me think we might need to include the SMS service into the version of an application "stack" diagram as well.

Just a heads up.

[slifty]

@reefdog no problem, I didn't edit what github auto-populated -- I wonder why github doesn't auto-populate with a nicer format.

[reefdog]

@slifty Whoa, I see what you mean. That's terrible! I'm going to go report that as a bug to GitHub. There's no way that a single, non-wrapping monospaced line is preferable to the proper Markdown blockquote.