[css-shadow-1][editorial] Increase bikeshed term matching targets

Author: fantasai

css-shadow-1/Overview.bs

@@ -810,7 +810,9 @@ Name-Defining Constructs and Inheritance</h3>
 	the [=root=] of the [=element=] hosting the stylesheet
 	that the at-rule or property is declared in.
 
-	Additionally, [=tree-scoped names=] can be <dfn export for="tree-scoped name">loosely matched</dfn> or <dfn export for="tree-scoped name">strictly matched</dfn>,
+	Additionally, [=tree-scoped names=] can be
+	<dfn export for="tree-scoped name, tree-scoped reference" lt="loosely matched | loosely-matched">loosely matched</dfn> or
+	<dfn export for="tree-scoped name, tree-scoped reference" lt="strictly  matched | strictly-matched">strictly matched</dfn>,
 	defaulting to [=loosely matched=] unless otherwise specified.
 	A [=loosely matched=] [=tree-scoped name=]
 	can be matched by [=tree-scoped references=]