Place an explanation like so:
It may be a good idea to place the copyvio content under this tag inside blockquote tags, like so:
<blockquote> copyvio text </blockquote>
This helps keep track as content is adapted and moved into the unmarked (not copyvio) section above it, or elsewhere.
This also tags the page as "noindex" so that Appropedia is not punished for having duplicate content.
Adding this template automatically adds the page to Category:Copyright issues. (Note that it's an "issue" rather than a violation. If it's determined that it's actually a violation, standard policy is to delete the content.)