Fix view-transition-1 typos

Author: Psychpsyo

css-view-transitions-1/Overview.bs

@@ -1825,7 +1825,7 @@ urlPrefix: https://wicg.github.io/navigation-api/; type: interface;
 		1. [=list/For each=] |element| of |transition|'s [=ViewTransition/transition root pseudo-element=]'s [=tree/inclusive descendants=]:
 			1. For each |animation| whose [=timeline=] is a [=document timeline=] associated with |document|,
 				and contains at least one [=animation/associated effect=] whose [=effect target=] is |element|,
-				set |hasActiveAnimations| to true if any of the following conditions is true:
+				set |hasActiveAnimations| to true if any of the following conditions are true:
 
 				- |animation|'s [=animation/play state=] is [=play state/paused=] or [=play state/running=].
 
@@ -1887,7 +1887,7 @@ urlPrefix: https://wicg.github.io/navigation-api/; type: interface;
 
 			1. Otherwise:
 
-				1. Return failure if any of the following conditions is true:
+				1. Return failure if any of the following conditions are true:
 					- |capturedElement|'s [=new element=] has a [=flat tree=] ancestor that [=skips its contents=].
 
 					- |capturedElement|'s [=new element=] is [=element-not-rendered|not rendered=].