Update readme

Author: michaelkourlas

README.md

@@ -87,7 +87,7 @@ var obj = {
     "lastName": "Smith",
     "dateOfBirth": new Date(1964, 7, 26),
     "address": {
-        "__attr": {
+        "@": {
             "type": "home"
         },
         "streetAddress": "3212 22nd St",
@@ -97,22 +97,22 @@ var obj = {
     },
     "phone": [
         {
-            "__attr": {
+            "@": {
                 "type": "home"
             },
-            "__val": "123-555-4567"
+            "#": "123-555-4567"
         },
         {
-            "__attr": {
+            "@": {
                 "type": "cell"
             },
-            "__val": "890-555-1234"
+            "#": "890-555-1234"
         },
         {
-            "__attr": {
+            "@": {
                 "type": "work"
             },
-            "__val": "567-555-8901"
+            "#": "567-555-8901"
         }
     ],
     "email": "john@smith.com"