Fix example querystring

Ampersand not comma, and use the correct offsets.

Author: handrews

jsonschema-hyperschema.xml

@@ -2305,15 +2305,15 @@ Link: <https://api.example.com/trees/1/nodes/456> rev=up
         "contextPointer": "",
         "rel": "self",
         "targetUri":
-            "https://api.example.com/things?offset=20,limit=2",
+            "https://api.example.com/things?offset=0&limit=2",
         "attachmentPointer": ""
     },
     {
         "contextUri": "https://api.example.com/things",
         "contextPointer": "",
         "rel": "next",
         "targetUri":
-            "https://api.example.com/things?offset=22,limit=2",
+            "https://api.example.com/things?offset=3&limit=2",
         "attachmentPointer": ""
     }
 ]]]>