[css-values-5] Refer to transform interpolation. #6245

Author: tabatkins

css-values-5/Overview.bs

@@ -978,6 +978,7 @@ Weighted Average of Transform Values: the ''transform-mix()'' notation</h3>
 	interpolating each <<transform-list>>
 	using its <<percentage>> weight as the interpolation progress
 	from the [=identity transform=] towards the <<transform-list>>.
+	See [[css-transforms-1#interpolation-of-transforms]].
 
 	If every <<percentage>> weight can be fully resolved,
 	and the <<transform-list>>s can be interpolated