[css-text-4] Update Changes list

Author: fantasai

css-text-4/Overview.bs

@@ -10250,6 +10250,20 @@ Changes</h2>
 			 <a href="https://github.com/w3c/csswg-drafts/issues/779">Issue 779</a>)
 		<li>Switched ''text-spacing: normal'' to use ''text-spacing/trim-end'' instead of ''text-spacing/allow-end''.
 			(<a href="https://github.com/w3c/csswg-drafts/issues/7055">Issue 7055</a>)
+		<li>Switched ''text-spacing: normal'' to also apply ''text-spacing/ideograph-alpha'' and ''text-spacing/ideograph-numeric'',
+			updated UA default stylesheet to exclude these from monospace contexts,
+			specified that non-zero margin/border/padding inhibits space insertion,
+			and defined the amount of inserted space as ''0.125ic''.
+			(<a href="https://github.com/w3c/csswg-drafts/issues/6950">Issue 6950</a>)
+		<li>Defined ''text-align: match-parent'' to compute to ''text-align/start'' on the [=root element=]
+			for simplicity of implementation.
+			(<a href="https://github.com/w3c/csswg-drafts/issues/6542">Issue 6542</a>)
+		<li>Allow ''text-justify/distribute'' keyword to be a [=legacy value alias=]
+			or to simply compute to ''text-justify/inter-character'';
+			this allows UAs to do whichever is easier, since the distinction does not matter for backwards-compatibility.
+			(<a href="https://github.com/w3c/csswg-drafts/issues/7322">Issue 7322</a>)
+		<li>Renamed <css>trim-inner</css> value of 'text-space-trim' to ''discard-inner'' for consistency with other values.
+			(<a href="https://github.com/w3c/csswg-drafts/issues/448">Issue 448</a>)
 	</ul>
 
 	Significant changes since the <a href="https://www.w3.org/TR/2019/WD-css-text-4-20191113/">2019 Working Draft</a> include: