Export ML Site

Human-facing prose

Details: setup-workspace references/human_facing_prose.md. Tell the user the website has been updated and paste the file:// line from that output verbatim, so a click opens the browser. Do not describe the line. Do not link a workspace-relative path. Do not say double-click or "no server". Do not name the markdown file that was edited. Do not quote site init / site build as something they should run.