[css-gaps-1][editorial] Update the Acknowledgements section

Author: kbabbitt

css-gaps-1/Overview.bs

@@ -2167,23 +2167,32 @@ When interpolating ''repeat()'' values, or lists of values for 'rule-color' or '
 <h2 id="acknowledgements">
 Acknowledgements</h2>
 
-<p>This specification is made possible by contributions and feedback from many people, including:
+<p>
+	Many thanks to Sam Davis Omekara Jr. and Javier Contreras Tenorio
+	who contributed a significant amount of normative text, examples, and WPT coverage to this specification.
+</p>
+
+<p>
+	Mats Palmgren's earlier 
+	<a href="https://matspalmgren.github.io/css-gap-decorations/Overview.html">proposal</a>
+	for Gap Decorations helped inform the direction of this specification.
+</p>
+
+<p>
+	Additional feedback that helped shape this specification was contributed by many people, including:
 	Ahmad Shadeed,
 	Alison Maher,
 	Benoît Rouleau,
 	Elika Etemad,
 	Ian Kilpatrick,
-	Javier Contreras Tenorio,
 	Josh Tumath,
 	Kurt Catti-Schmidt,
 	Lea Verou,
 	Oliver Williams,
 	Rachel Andrew,
-	Sam Davis Omekara Jr.,
 	Sebastian Zartner,
 	Tab Atkins-Bittner,
 	and the CSS Working Group members.
-	Special thanks to Mats Palmgren who drafted an initial proposal for Gap Decorations.
 </p>
 
 <h2 id="privacy">