[css-text-decor-4] Update Changes list.

Author: fantasai

css-text-decor-4/Overview.bs

@@ -2044,15 +2044,20 @@ Changes since the 13 March 2018 Working Draft</h3>
 <ul>
 	<li>Merged in entire contents of <a href="https://www.w3.org/TR/css-text-decor-3/">CSS Text Decoration Level 3</a>,
 	so that this is no longer a diff spec.
+	<li>Split 'text-decoration-skip' into longhands.
+		(<a href="https://github.com/w3c/csswg-drafts/issues/843">Issue 843</a>)
+	<li>Added ''text-decoration-skip-ink/all'' value to 'text-decoration-skip-ink'.
 	<li>Renamed <css>text-decoration-width</css> to 'text-decoration-thickness'.
+	<li>Added <<percentage>> values to 'text-decoration-thickness' and 'text-underline-offset'.
+		(<a href="https://github.com/w3c/csswg-drafts/issues/2165">Issue 2165</a>)
 	<li>Defined 'text-underline-offset' postion values as outsets rather than insets,
 		because this was more intuitive to users.
 	<li>Moved ''text-underline-position/from-font'' keyword from 'text-underline-offset' to 'text-underline-position'.
 		(<a href="https://github.com/w3c/csswg-drafts/issues/3118#issuecomment-432297480">Issue 3118</a>)
-	<li>Added <<percentage>> values to 'text-decoration-thickness' and 'text-underline-offset'.
-		(<a href="https://github.com/w3c/csswg-drafts/issues/2165">Issue 2165</a>)
-	<li>Split 'text-decoration-skip' into longhands.
-		(<a href="https://github.com/w3c/csswg-drafts/issues/843">Issue 843</a>)
+	<li>Adjust ''text-emphasis-skip: punctuation'' to include all of Po category, with some exceptions.
+		(<a href="https://github.com/w3c/csswg-drafts/issues/839">Issue 839</a>)
+	<li>Clarified that line-throughs are always continuous.
+	<li>Miscellaneous clarifications and editorial tweaks.
 </ul>
 
 <h3 class="no-num" id="additions-l3">