[mediaqueries] This is a discrete query.

Author: tabatkins

mediaqueries/Overview.bs

@@ -1454,7 +1454,7 @@ color-gamut</h3>
 	Name: color-gamut
 	Value: srgb | p3 | rec2020
 	For: @media
-	Type: range
+	Type: discrete
 	</pre>
 
 	The 'color-gamut' media feature describes the approximate range of colors