[css-grid-3][editorial] Tweak wording

Author: fantasai

css-grid-3/Overview.bs

@@ -157,13 +157,13 @@ One-dimensional Grid Layout</h4>
 	allows for this type of one-dimensional grid layout.
 
 	<div class="example">
-		In this example <a href="https://github.com/w3c/csswg-drafts/issues/10233#issuecomment-2071279204">by Douglas Graham</a>,
-		the items use explicit positioning to place each item into its assigned column;
+		This example <a href="https://github.com/w3c/csswg-drafts/issues/10233#issuecomment-2071279204">by Douglas Graham</a>
+		uses explicit positioning to place each item into its assigned column;
 		but there are no rows.
 		Instead, items in each column stack one after the other.
 		This layout can't be duplicated in [=grid layout=]
 		because the “spanning” relationships among the items in adjacent columns
-		is not fixed: it depends on their relative heights,
+		is not fixed: it depends on their relative heights
 		and whether the optional banner or advertisement items are included.
 		It also can't be duplicated in [=flex layout=]
 		because the source order of the items
@@ -182,7 +182,7 @@ One-dimensional Grid Layout</h4>
 			          in the wider left column the optional banner followed by the main content area,
 			          and in the narrow left column the secondary navigation followed by the advertisement block.">
 			<figcaption>
-				Comparison of one-column and two-column variants of a one-dimensional grid page layout.
+				Comparison of one-column and two-column variants of a one-dimensional grid layout.
 			</figcaption>
 		</figure>
 	</div>