[css-view-transitions-1][editorial] Fix linking error

Author: tabatkins

css-view-transitions-1/Overview.bs

@@ -35,7 +35,7 @@ spec:css-display-3; type:dfn;
 	text:containing block
 	text:replaced element
 spec:css-cascade-5; type:dfn; text:computed value
-spec:css22; type:dfn; text:element
+spec:css2; type:dfn; text:element
 spec:css-break-4; type:dfn; text:fragment
 spec:css-viewport; type:dfn; text:interactive-widget;
 spec:css-display-4; type: dfn; text:invisible;