[css-2020] include css-contain-1 in snapshot, it's now a REC

Author: frivoal

css-2020/Overview.bs

@@ -255,6 +255,14 @@ Background: The W3C Process and CSS</h3>
 		  [[CSS3-TRANSFORMS]]
 		<dd>
 			Introduces graphical transformations to CSS.
+
+		<dt><a href="https://www.w3.org/TR/css-contain-1/">CSS Containment Module Level 1</a>
+		  [[CSS-CONTAIN-1]]
+		<dd>
+			Describes the 'contain' property,
+			which indicates that the element’s subtree is independent of the rest of the page.
+			This enables heavy optimizations by user agents when used well.
+
 	</dl>
 
 	<div class="note">
@@ -347,13 +355,6 @@ Background: The W3C Process and CSS</h3>
 			<dd>
 				Describes the fragmentation model that partitions a flow into pages, columns, or regions.
 
-			<dt><a href="https://www.w3.org/TR/css-contain-1/">CSS Containment Module Level 1</a>
-			  [[CSS-CONTAIN-1]]
-			<dd>
-				Describes the 'contain' property,
-				which indicates that the element’s subtree is independent of the rest of the page.
-				This enables heavy optimizations by user agents when used well.
-
 			<dt><a href="https://www.w3.org/TR/css-scroll-snap-1/">CSS Scroll Snap Module Level 1</a>
 			  [[CSS-SCROLL-SNAP-1]]
 			<dd>