[css-sizing] Fix changes list

Author: fantasai

css-sizing-3/Overview.bs

@@ -460,8 +460,9 @@ Changes</h2>
 		Changes since the <a href="https://www.w3.org/TR/2016/WD-css-sizing-3-20160512/">12 May 2016 Working Draft</a>:
 
 	<ul>
-		<li>Renamed <css>fill</css> keyword to ''width/stretch''.
-		<li>
+		<li>Renamed <css>fill</css> keyword to ''width/stretch''
+		    and updated terminology to match.
+		<li>Deferred intrinsic sizing of replaced elements to CSS2.1.
 		<li>Updated definition of <a>definite</a> to allow measurements against text content, per WG resolution.
 	</ul>
 

css-sizing/Overview.bs

@@ -642,7 +642,7 @@ Changes</h2>
 		Changes since the <a href="https://www.w3.org/TR/2012/WD-css3-sizing-20120927/">September 2012 Working Draft</a> include:
 
 	<ul>
-		<li>Changed <code>stretch-fit</code> keyword to <code>fill</code>.
+		<li>Changed <code>fill</code> keyword to <code>stretch-fit</code>.
 		<li>Hooked up intrinsic sizes of replaced elements to the <a>default sizing algorithm</a> in [[!CSS3-IMAGES]].
 		<li>Specified that <a>extrinsic sizing</a> treates ''margin/auto'' margins as zero.
 		<li>Clarified definition of <a>available space</a>.