i added a link to the changes here in the sonata issue about the preview link.

i don't really understand what the publish workflow thingy was about, if it just was doing documentation. @lsmith77 can you create an issue on the corebundle if we should add something to the publish workflow admin extensions? maybe providing the label and the help text in the form would be enough?

lets merge this PR, the publish workflow things are already displaying broken, so it seems not too important to me.