[css-color-adjust-1] Update Changes list

Author: fantasai

css-color-adjust-1/Overview.bs

@@ -552,3 +552,19 @@ Acknowledgements {#acknowledgements}
 	イアンフェッティ
 
 	ISSUE: List additional MSFT / Apple / Google people here.
+
+Changes {#changes}
+=======
+
+	Changes since the <a href="https://www.w3.org/TR/2019/WD-css-color-adjust-1-20190523/">23 May 2019 Working Draft</a>:
+
+	<ul>
+		<li>Forced background colors don't revert, they force all color channels other than alpha (to preserve author’s transparency).
+			<a href="https://github.com/w3c/csswg-drafts/issues/4175">Issue 4175</a>.
+		<li>Force opaque background if color-adjust mismatches between <{iframe}> and embedded document.
+			<a href="https://github.com/w3c/csswg-drafts/issues/4472">Issue 4472</a>.
+		<li>Don't force colors on SVG text.
+		<li>Rename ''color-scheme: auto'' to ''color-scheme: normal''.
+			<a href="https://github.com/w3c/csswg-drafts/issues/3849">Issue 3849</a>.
+		<li>Miscellaneous clarifications.
+	</ul>