[css-sizing-4] Fix copy-paste error ede56bd#r41094128

Author: fantasai

css-sizing-4/Overview.bs

@@ -237,7 +237,7 @@ Intrinsic Aspect Ratios: the 'aspect-ratio' property</h3>
 		in the <var>destination</var> axis.
 	* Then, any [=definite=] [=maximum size=] is converted and transferred
 		from the <var>origin</var> to <var>destination</var>.
-		This transferred minimum is floored
+		This transferred maximum is floored
 		by any [=definite=] [=preferred size|preferred=] or [=minimum size=]
 		in the <var>destination</var> axis
 		as well as by the transferred minimum, if any.