[css-text-decor-4] Clarify issue.

Author: fantasai

css-text-decor-4/Overview.bs

@@ -69,7 +69,8 @@ Automatic Thickness of Text Decoration Lines</h4>
 <h3 id="line-position">
 Determining the Position and Thickness of Line Decorations</h3>
 
-	Issue: This section is copied over from early drafts of Text Decoration Level 3, and is still under discussion.
+	Issue: This section is copied over from early drafts of Text Decoration Level 3.
+	It is still under review, and needs integration with 'text-underline-offset' and 'text-decoration-width'.
 
 	<p>Since line decorations can span elements with varying font sizes and
 		vertical alignments, the best position for a line decoration is not