[css-grid] Largest => smallest

Author: tabatkins

css-grid/Overview.bs

@@ -1230,7 +1230,7 @@ Repeating Rows and Columns: the ''repeat()'' notation</h4>
 	or as its minimum track sizing function otherwise,
 	and taking 'grid-gap' into account).
 	Otherwise, if the <a>grid container</a> has a <a>definite</a> min size in the relevant axis,
-	the number of repetitions is the largest possible positive integer that fulfills that minimum requirement.
+	the number of repetitions is the smallest possible positive integer that fulfills that minimum requirement.
 	Otherwise, the specified <a>track list</a> repeats only once.
 
 	For the purpose of finding the number of auto-repeated tracks,