[css-sizing-3] Fix linking error.

Author: fantasai

css-sizing-3/Overview.bs

@@ -946,7 +946,7 @@ are defined below:
 			use that size.
 
 			Note: This author-controllable behavior is made possible
-			by the new ''min-width/auto'' value for the [=minimum size properties=].
+			by the new ''min-width/auto'' value for the [=min size properties=].
 			This is believed to be a better behavior,
 			but it is not yet clear if it is Web-compatible,
 			so please send feedback to the CSSWG if there are any problems.