Update enums.md: Change super => transparent

This must have been missed in changing super to transparent

Author: mbloms

docs/docs/reference/enums/enums.md

@@ -120,7 +120,7 @@ This trait defines a single public method, `ordinal`:
 package scala.reflect
 
 /** A base trait of all Scala enum definitions */
-super trait Enum extends Any with Product with Serializable {
+transparent trait Enum extends Any with Product with Serializable {
 
   /** A number uniquely identifying a case of an enum */
   def ordinal: Int