amend sort implemented this way

docs/DeveloperGuide.md

@@ -305,13 +305,14 @@ The main operation for the sort feature is the `updateSortedPersonList(Comparato
 The following are some explanations for decisions made in the implementation of the sort feature.
 
 Need for multiple `Comparator` objects:
-This is to keep in view for when other commands or enhancements may need the separate attribute predicates.
+This is to keep in view for when other commands or enhancements may need the separate attribute predicates. 
 
-`SortCommmandParser` parsing the `Predicate` objects:
-This is to prevent `SortCommand` from taking on more responsibilities (Separation of Concerns).
+Need for `MultiComparator` object:
+This is to map the 1 or more comparator objects and act as a layer of abstraction where `SortCommmand` does need to know how many attributes are used in sorting.
+This also w
 
-`SortCommand` having `setPersonPredicate()` method:
-This is so that `SortCommand` has the required argument of type `Comparator<Person>` to be used in the `updateSortedPersonList()` method. Since the `Comparator<Person>` object is created by chaining the multiple predicates, no parsing is involved to create this `Predicate`.
+`SortCommmandParser` parsing the `Comparator` objects:
+This is to prevent `SortCommand` from taking on more responsibilities (Separation of Concerns).
 
 #### What designs were considered:
 **Aspect: Determining order of sorting of an attribute:**