clarify note

css-view-transitions-1/Overview.bs

@@ -1500,7 +1500,8 @@ urlPrefix: https://wicg.github.io/navigation-api/; type: interface;
 
 		1. [=Assert=]: |transition|'s [=ViewTransition/phase=] is not "`done`".
 
-		1. If |transition|'s [=ViewTransition/phase=] is [=phases/before=] "`update-callback-called`", then [=call the update callback=] of |transition|.
+		1. If |transition|'s [=ViewTransition/phase=] is [=phases/before=] "`update-callback-called`", then [=queue a global task=] on the [=DOM manipulation task source=],
+			given |transition|'s [=relevant global object=], to [=call the update callback=] of |transition|.
 
 		1. Set [=document/transition suppressing rendering=] to false.
 
@@ -1591,7 +1592,7 @@ urlPrefix: https://wicg.github.io/navigation-api/; type: interface;
 
 		* Implementations may clip the rendered contents if the [=ink overflow rectangle=] exceeds some [=implementation-defined=] maximum.
 			However, the captured image should include, at the very least, the contents of |element| that intersect with the [=snapshot root=].
-			Implementations may adjust the rasterization quality to account for elements with a large [=border box=] that are transformed into view.
+			Implementations may adjust the rasterization quality to account for elements with a large [=ink overflow area=] that are transformed into view.
 
 		* [=list/For each=] |descendant| of [=shadow-including descendant=] {{Element}} and [=pseudo-element=] of |element|,
 			if |descendant| has a [=computed value=] of 'view-transition-name' that is not ''view-transition-name/none'',