Remove anchor and add specific note
Remove anchor and add specific note

Rather than linking to a previous note, move the block downwards to be
part of the specific guidance.

This also removes a false positive in Vale. I cannot find a way to
whitelist this particular behaviour unfortunately.

alphagov/govuk-developer-docs,alphagov/govuk-developer-docs,alphagov/govuk-developer-docs,alphagov/govuk-developer-docs