[css-transforms-2] Fix clamping of product

Author: birtles

css-transforms-2/Overview.bs

@@ -1011,8 +1011,8 @@ Output: quaternionDst ; a 4 component vector
 product = dot(quaternionA, quaternionB)
 
 // Clamp product to -1.0 <= product <= 1.0
-product = max(product, 1.0)
-product = min(product, -1.0)
+product = min(product, 1.0)
+product = max(product, -1.0)
 
 if (abs(product) == 1.0)
 	 quaternionDst = quaternionA