Update css-conditional-5/Overview.bs

Co-authored-by: Seokho Song <0xdevssh@gmail.com>

Author: meyerweb

css-conditional-5/Overview.bs

@@ -2030,7 +2030,7 @@ form of the associated [=ContainerQueryList/container query list=].
 A {{ContainerQueryList}} object has an associated 
 <dfn for=ContainerQueryList>matches state</dfn> 
 which is true if the associated [=ContainerQueryList/container query list=] 
-matches the state of the <a for=ContainerQueryList>document</a>, and false otherwise.
+matches the state of the <a for=ContainerQueryList>query container</a>, and false otherwise.
 
 
 When asked to <dfn export>evaluate container queries and report changes</dfn>