[css-color-adjust-1] Update changes

Author: svgeesus

css-color-adjust-1/Overview.bs

@@ -784,6 +784,10 @@ Acknowledgements {#acknowledgements}
 Changes {#changes}
 =======
 
+	Changes since the <a href="https://www.w3.org/TR/2021/WD-css-color-adjust-1-20210616/">16 June 2021 Working Draft</a>:
+
+	* Defined color-scheme: normal to be hookable by HTML with a meta tag.
+
 	Changes since the <a href="https://www.w3.org/TR/2020/WD-css-color-adjust-1-20201109/">9 November 2020 Working Draft</a>:
 
 	* Added 'scrollbar-color', 'caret-color', 'flood-color', 'lighting-color', 'stop-color', and 'accent-color'