Changes for row-gap in multicol

Fixes: w3c#11539

Author: rachelandrew

css-align-3/Overview.bs

@@ -2095,7 +2095,7 @@ Row and Column Gutters: the 'row-gap' and 'column-gap' properties</h3>
 		<dd>
 			'column-gap' specifies the [=gutter=] between adjacent <a>column boxes</a>.
 			See [[CSS-MULTICOL-1]] for details on how this affects the layout of multicol elements.
-			'row-gap' does not currently apply.
+			'row-gap' is introduced in [[CSS-MULTICOL-2]].
 
 		<dt id="gap-flex"><a>flex containers</a>
 		<dd>
@@ -2524,6 +2524,9 @@ Changes</h2>
 
 	Changes since the <a href="https://www.w3.org/TR/2023/WD-css-align-3-20230217/">17 February 2023 Working Draft</a> include:
 	<ul>
+		<li>Remove the sentence that states that ''row-gap'' does not apply in multicol.
+		Added a statement that ''row-gap'' is introduced for multicol in CSS-MULTICOL-2 
+			(<a href="https://github.com/w3c/csswg-drafts/issues/11539#issuecomment-2628431667">Issue 11539</a>)
 		<li>Make all the ''space-*'' keywords fallback to ''safe'' overflow.
 			(<a href="https://github.com/w3c/csswg-drafts/issues/10154">Issue 10154</a>)
 		<li>Only apply the special margin-edge baseline rule for [=scroll container=] [=block containers=]