Fix AND Update REDAME.md to include ObjectEach(..)

Author: Rami.D

README.md

@@ -61,8 +61,9 @@ jsonparser.ArrayEach(data, func(value []byte, dataType jsonparser.ValueType, off
 }, "person", "avatars")
 
 // You can use `ObjectEach` helper to iterate objects { "key1":object1, "key2":object2, .... "keyN":objectN }
-jsonparser.ObjectEach(data, func(key []byte, value []byte, dataType jsonparser.ValueType, offset int, err error) {
+jsonparser.ObjectEach(data, func(key []byte, value []byte, dataType jsonparser.ValueType, offset int) error {
         fmt.Printf("Key: '%s'\n Value: '%s'\n Type: %s\n", string(key), string(value), dataType)
+	return nil
 }, "person", "name")
 ```
 
@@ -130,6 +131,20 @@ func ArrayEach(data []byte, cb func(value []byte, dataType jsonparser.ValueType,
 ```
 Needed for iterating arrays, accepts a callback function with the same return arguments as `Get`.
 
+### **`ObjectEach`**
+```go
+func ObjectEach(data []byte, callback func(key []byte, value []byte, dataType ValueType, offset int) error, keys ...string) (err error)
+```
+Needed for iterating object, accepts a callback function. Example:
+```go
+var handler func([]byte, []byte, jsonparser.ValueType, int) error
+handler = func(key []byte, value []byte, dataType jsonparser.ValueType, offset int) error {
+	//do stuff here
+}
+jsonparser.ObjectEach(myJson, handler)
+```
+
+
 ### **`KeyEach`**
 ```go
 func KeyEach(data []byte, cb func(idx int, value []byte, dataType jsonparser.ValueType, err error), paths ...[]string)