[css-contain-1] Update the boilerplate

Author: frivoal

css-contain-1/Overview.bs

@@ -13,7 +13,7 @@ Previous Version: https://www.w3.org/TR/2019/REC-css-contain-1-20191121/
 Editor: Tab Atkins, Google, http://xanthir.com/contact/, w3cid 42199
 Editor: Florian Rivoal, On behalf of Bloomberg, https://florian.rivoal.net/, w3cid 43241
 Abstract: This CSS module describes the 'contain' property, which indicates that the element's subtree is independent of the rest of the page. This enables heavy optimizations by user agents when used well.
-Status Text: <div class="correction proposed"><a href="https://www.w3.org/Consortium/Process/#change-review">Proposed corrections</a> are marked in the document.</div>
+Status Text: <p>This document was published by the CSS Working Group as a Recommendation using the <a href="https://www.w3.org/2021/Process-20211102/#recs-and-notes">Recommendation track</a>. It includes <a href="https://www.w3.org/2021/Process-20211102/#proposed-corrections">proposed corrections.</a>.</p><p class="correction proposed">Proposed corrections are marked in the document.</p>
 WPT Path Prefix: css/css-contain/
 Include MDN Panels: no
 </pre>