[css-grid] tpyo

Author: tabatkins

css-grid/Overview.bs

@@ -4047,7 +4047,8 @@ Sample Fragmentation Algorithm</h3>
 
 		<li>
 			If a <a>grid area</a>’s size changes due to fragmentation (do not include items that
-			span rows in this decision), increase the grid row as necessary for rows that either:
+			span rows in this decision), increase the grid row size as necessary for rows that either:
+
 			<ul>
 				<li>
 					have a content min track sizing function.