[css-values-5] Link to issue

Author: fantasai

css-values-5/Overview.bs

@@ -934,7 +934,8 @@ Container Query Progress Values: the ''container-progress()'' notation</h3>
 <h2 id="mixing">
 Mixing and Interpolation Notations: the *-mix() family</h2>
 
-	ISSUE(6245): This feature <a href="https://css.typetura.com/ruleset-interpolation/explainer/">does not handle multiple breakpoints very well</a>, and might need to be redesigned.
+	ISSUE(6245): This feature <a href="https://css.typetura.com/ruleset-interpolation/explainer/">does not handle multiple breakpoints very well</a>,
+	and <a href="https://github.com/w3c/csswg-drafts/issues/6245#issuecomment-2469190377">might need to be redesigned</a>.
 
 	Several <dfn>mix notations</dfn> in CSS
 	allow representing the interpolation of two values,