Update IP address format with note

[guardrex]

Addresses #8417

[guardrex]

@scottaddie I'm on the fence about the † ... Should I inline this text between the bullet list and the code example?

If we want to de-emphasize the points, let's keep them in footnote format. If we want to emphasize those points, then I'd say let's move those two sentences just above the code example (and de-dagger them).

[scottaddie]

@guardrex Please move the points just above the code example and de-dagger them.