Updated broken code for graphene_django 2.8

Relay-Pagination-example.md

@@ -1,6 +1,6 @@
-For this example, we're using `DjangoObjectType` and a hypothetical django model for Place. Neither of these is necessary, and it's being included only to present a complete (almost) example. Simply replace the model assignment, and use the appropriate `ObjectType` in place of `DjangoObjectType` in the initial type declaration (`class Place_Node_Type(DjangoObjectType)` herein) for your application, and pagination will be yours!
+For this example, we're using `DjangoObjectType` and a django model for Place. Neither of these is necessary, and it's being included only to present a complete (almost) example. Simply replace the model assignment, and use the appropriate `ObjectType` in place of `DjangoObjectType` in the initial type declaration (`class PlaceNodeType(DjangoObjectType)` herein) for your application, and pagination will be yours!
 
-For this example, we're going to assume a basic understanding of what `startCursor` and `endCursor`, and really, `pagination` as a concept, actually **are**, and just quickly provide you with the basics of pagination-in-graphene's **how**.
+For this example, we're going to assume a basic understanding of how [Relay pagination](https://graphql.org/learn/pagination/#complete-connection-model) works, and just quickly provide you with the basics of graphene relay pagination's **how**.
 
 In a nutshell, `pagination` is implemented via graphene relay's `Connection` and `ConnectionField` pairing. With these in place, you'll see `pageInfo` available within your queries. It looks something like this:
 
@@ -23,34 +23,26 @@ In addition to a `cursor` element within `edges` that will show you the cursor i
     }
 ```
 
-The basic implementation below provides the elements for cursor-based pagination that you'll need to do your thing in your code. Hope this helps.
+The basic schema below provides relay cursor-based pagination, combined with graphene_django filter capability.
 
 ```
-from graphene import Connection, ConnectionField, Node, Int
-from graphene_django import DjangoObjectType
+from graphene import relay
+from graphene_django.types import DjangoObjectType
+from graphene_django.filter import DjangoFilterConnectionField
+
 from <wherever your models exist> import Place
 
-class Place_Node_Type(DjangoObjectType):
+class PlaceNodeType(DjangoObjectType):
     class Meta:
         model = Place
-        interfaces = (Node, )
-
-
-class Place_Connection(Connection):
-    class Meta:
-        node = Place_Node_Type
-    count = Int()
-
-    def resolve_count(root, info):
-        return len(root.edges)
+        interfaces = (relay.Node, )
+        filter_fields = {"name": ["exact", "icontains", "istartswith"]}
 
 
 class Query(object):
-    places = ConnectionField(Place_Connection)
-
-    def resolve_places(root, info, **kwargs):
-        return Place.objects.all()
+    places = DjangoFilterConnectionField(PlaceNodeType)
 ```
+
 The following query, (the pageInfo element is included for illustration, but isn't necessary for the query to resolve):
 ```
 {