Simplify readme example, add output

Author: uNetworkingAB

README.md

@@ -4,34 +4,66 @@
 
 ## 17x the json.Marshal performance
 ```go
-var json []byte = supercereal.Marshal(func(object *supercereal.JSONObject) {
+supercereal.Marshal(func(object *supercereal.Object) {
   object.Put("firstName", "John")
   object.Put("lastName", "Smith")
   object.Put("isAlive", true)
   object.Put("age", 25)
-  object.Put("address", func(object *supercereal.JSONObject) {
+  object.Put("address", func(object *supercereal.Object) {
     object.Put("streetAddress", "21 2nd Street")
     object.Put("city", "New York")
     object.Put("state", "NY")
     object.Put("postalCode", "10021-3100")
   })
-  object.Put("phoneNumbers", func(array *supercereal.JSONArray) {
-    array.Put(func(object *supercereal.JSONObject) {
+  object.Put("phoneNumbers", func(array *supercereal.Array) {
+    array.Put(func(object *supercereal.Object) {
       object.Put("type", "home")
       object.Put("number", "212 555-1234")
     })
-    array.Put(func(object *supercereal.JSONObject) {
+    array.Put(func(object *supercereal.Object) {
       object.Put("type", "office")
       object.Put("number", "646 555-4567")
     })
-    array.Put(func(object *supercereal.JSONObject) {
+    array.Put(func(object *supercereal.Object) {
       object.Put("type", "mobile")
       object.Put("number", "123 456-7890")
     })
   })
-  object.Put("children", func(array *supercereal.JSONArray) {})
+  object.Put("children", func(array *supercereal.Array) {})
   object.Put("spouse", nil)
 })
 ```
 
+Where `supercereal.Marshal` returns the `[]byte` (here prettified for demonstration):
+```json
+{
+  "firstName": "John",
+  "lastName": "Smith",
+  "isAlive": true,
+  "age": 25,
+  "address": {
+    "streetAddress": "21 2nd Street",
+    "city": "New York",
+    "state": "NY",
+    "postalCode": "10021-3100"
+  },
+  "phoneNumbers": [
+    {
+      "type": "home",
+      "number": "212 555-1234"
+    },
+    {
+      "type": "office",
+      "number": "646 555-4567"
+    },
+    {
+      "type": "mobile",
+      "number": "123 456-7890"
+    }
+  ],
+  "children": [],
+  "spouse": null
+}
+```
+
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