[css-sizing] Split paragraph talking about two different things.

Author: tabatkins

css-sizing-3/Overview.bs

@@ -502,7 +502,8 @@ Stretch-fit Sizing</h3>
 	with a value of ''min-width/min-content'', ''min-width/max-content'', ''min-width/fit-content'',
 	or ''min-width/auto'' (or otherwise <a>behaving as auto</a>)
 	does not prevent the resolution of percentage sizes of the box’s contents.
-	However, in order to prevent cyclic sizing in the general case,
+
+	In order to prevent cyclic sizing in the general case,
 	percentages do not otherwise resolve against <a>indefinite</a> sizes,
 	and instead are treated as <css>auto</css>.