[css-lists-3] Update changes list.

Author: fantasai

css-lists-3/Overview.bs

@@ -1541,13 +1541,22 @@ This section documents the changes since previous publications.
 <h3 id="changes-20190817">Changes since the 17 August 2019 WD</h3>
 
 	<ul>
-		<li>Specify that ''outside'' list markers are [=blockified=].
+		<li>Specified that ''outside'' list markers [=block containers=].
+		(Their [=outer display type=] remains undefined.)
+
+		<li>Stole list of properties applying to ''::marker'' from [[CSS-PSEUDO-4]]
+		and added animations, transitions, and 'white-space'.
+
+		<li>Added ''white-space: pre'' to UA default style sheet for ''::marker''.
+		(<a href="https://github.com/w3c/csswg-drafts/issues/4448">Issue 4448</a>)
+		Note, however, that the exact white space processing behavior of marker boxes
+		is still being worked out.
 	</ul>
 
 <h3 id="changes-20190425">Changes since the 25 April 2019 WD</h3>
 
 	<ul>
-		<li>Rewrite the [[#auto-numbering]] section for better precision, editorial clarity, and synchronization with CSS2.
+		<li>Rewrote the [[#auto-numbering]] section for better precision, editorial clarity, and synchronization with CSS2.
 	</ul>
 
 <h3 id="changes-20140320">Changes since the 20 March 2014 WD</h3>