[css-display] Update acks.

Author: fantasai

css-display/Overview.bs

@@ -8,6 +8,7 @@ Shortname: css-display
 Group: csswg
 Level: 3
 TR: https://www.w3.org/TR/css-display-3/
+Previous Version: https://www.w3.org/TR/2017/WD-css-display-3-20170126/
 Previous Version: https://www.w3.org/TR/2015/WD-css-display-3-20151015/
 Previous Version: https://www.w3.org/TR/2015/WD-css-display-3-20150721/
 Previous Version: https://www.w3.org/TR/2014/WD-css-display-3-20140911/
@@ -863,6 +864,9 @@ Acknowledgments</h2>
 	but primed us for the current spec,
 	and Anton Prowse,
 	whose relentless assault on CSS2.1 Chapter 9 forced some order out of the chaos.
+	Honorable mentions also go to
+	David Baron, Mats Palmgren, and Boris Zbarsky
+	for their feedback.
 
 <!--
 	We would also like to thank the many JavaScript libraries such as jQuery
@@ -873,7 +877,7 @@ Acknowledgments</h2>
 <h2 class=no-num id="changes">
 Changes</h2>
 
-	Changes since the ??? Working Draft include:
+	Changes since the <a href="https://www.w3.org/TR/2015/WD-css-display-3-20151015/">15 October 2015 Working Draft</a> include:
 	<ul>
 		<li>Deferred the <css>box-suppress/display-or-not</css> property to the next level of Display,
 		in order to provide time for futher discussion of use cases.