[css-grid][editorial] tweak wording

Author: tabatkins

css-grid-1/Overview.bs

@@ -1321,9 +1321,8 @@ Automatic Minimum Size of Grid Items</h3>
 	as represented by the sum of those <a>grid tracks</a>’ <a>max track sizing functions</a>
 	plus any intervening <a lt="fixed sizing function">fixed</a> <a>gutters</a>.
 
-	In all cases, the size suggestion is additionally clamped by the [=maximum size=],
-	if it's definite,
-	in the given axis.
+	In all cases, the size suggestion is additionally clamped by the [=maximum size=] in the affected axis,
+	if it's definite.
 
 	Note: The argument to ''fit-content()'' does <em>not</em> clamp
 	the [=content-based minimum size=] in the same way as a

css-grid-2/Overview.bs

@@ -1368,9 +1368,8 @@ Automatic Minimum Size of Grid Items</h3>
 	as represented by the sum of those <a>grid tracks</a>’ <a>max track sizing functions</a>
 	plus any intervening <a lt="fixed sizing function">fixed</a> <a>gutters</a>.
 
-	In all cases, the size suggestion is additionally clamped by the [=maximum size=],
-	if it's definite,
-	in the given axis.
+	In all cases, the size suggestion is additionally clamped by the [=maximum size=] in the affected axis,
+	if it's definite.
 
 	Note: The argument to ''fit-content()'' does <em>not</em> clamp
 	the [=content-based minimum size=] in the same way as a