[css-scoping] typo

Author: tabatkins

css-scoping/Overview.bs

@@ -41,9 +41,9 @@ Scoping Mechanisms</h3>
 	“Scoping” consists of three somewhat independent concepts,
 	which are in practice generally used together:
 
-	* A declaration can be scoped to <a>scoping root</a>,
+	* A declaration can be scoped to a <a>scoping root</a>,
 		which <a href="http://dev.w3.org/csswg/css-cascade/#cascade-scope">affects its cascading behavior</a>. [[!CSS3CASCADE]]
-		(Alternately, a style rule can be scoped to <a>scoping root</a>,
+		(Alternately, a style rule can be scoped to a <a>scoping root</a>,
 		which scopes all of the declarations it contains to that <a>scoping root</a>.)
 
 	* A selector can be either <a>scope-contained</a> or <a>scope-filtered</a> to a <a>scoping root</a>,