[css-values-3][css-values-4] Export “CSS value definition syntax” as well as “value definition syntax”

Author: fantasai

css-values-3/Overview.bs

@@ -90,7 +90,7 @@ Module Interactions</h3>
 <h2 id="value-defs">
 Value Definition Syntax</h2>
 
-	The <dfn for=CSS export>value definition syntax</dfn> described here
+	The <dfn for=CSS export lt="value definition syntax | CSS value definition syntax">value definition syntax</dfn> described here
 	is used to define the set of valid values for CSS properties
 	(and the valid syntax of many other parts of CSS).
 	A value so described can have one or more components.

css-values-4/Overview.bs

@@ -106,7 +106,7 @@ Module Interactions</h3>
 <h2 id="value-defs">
 Value Definition Syntax</h2>
 
-	The <dfn for=CSS export>value definition syntax</dfn> described here
+	The <dfn for=CSS export lt="value definition syntax | CSS value definition syntax">value definition syntax</dfn> described here
 	is used to define the set of valid values for CSS properties
 	(and the valid syntax of many other parts of CSS).
 	A value so described can have one or more components.