[css-align-3][editorial] update Changes

Author: tabatkins

css-align-3/Overview.bs

@@ -2521,6 +2521,8 @@ 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>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=]
 			when 'baseline-source' is its [=initial value=].
 			(<a href="https://github.com/w3c/csswg-drafts/issues/8214">Issue 8214</a>)