structure: improve examples

README.md

@@ -48,6 +48,10 @@ m := s.Map()
 // => ["gopher", 123456, true]
 v := s.Values()
 
+// Convert the values of a struct to a []*Field
+// (see "Field methods" for more info about fields)
+f := s.Fields()
+
 // Check if any field of a struct is initialized or not.
 if s.HasZero() {
     fmt.Println("s has a zero value field")
@@ -67,19 +71,13 @@ Most of the struct methods are available as global functions without the need
 for a `New()` constructor:
 
 ```go
-m := structure.Map(s)
+m := structure.Map(s)      // Get a map[string]interface{}
-v := structure.Values(s)
+v := structure.Values(s)   // Get a []interface{}
-f := structure.Fields(s)
+f := structure.Fields(s)   // Get a []*Field
-n := structure.Name(s)
+n := structure.Name(s)     // Get the struct name
-
+h := structure.HasZero(s)  // Check if any field is initialized
-hasZero :=  structure.HasZero(s)
+z := structure.IsZero(s)   // Check if all fields are initialized
-isZero := structure.IsZero(s)
+i := structure.IsStruct(s) // Check if s is a struct or a pointer to struct
-
-// Check if it's a struct or a pointer to struct
-if structure.IsStruct(s) {
-    fmt.Println("s is a struct")
-}
-
 ```
 
 ### Field methods

structure_example_test.go

@@ -5,6 +5,31 @@ import (
 	"time"
 )
 
+func ExampleNew() {
+	type Server struct {
+		Name    string
+		ID      int32
+		Enabled bool
+	}
+
+	server := &Server{
+		Name:    "Arslan",
+		ID:      123456,
+		Enabled: true,
+	}
+
+	s := New(server)
+
+	fmt.Printf("Name        : %v\n", s.Name())
+	fmt.Printf("Values      : %v\n", s.Values())
+	fmt.Printf("Value of ID : %v\n", s.Field("ID").Value())
+	// Output:
+	// Name        : Server
+	// Values      : [Arslan 123456 true]
+	// Value of ID : 123456
+
+}
+
 func ExampleMap() {
 	type Server struct {
 		Name    string
@@ -191,6 +216,40 @@ func ExampleFields_nested() {
 	// Access.Person.Name: fatih
 }
 
+func ExampleField() {
+	type Person struct {
+		Name   string
+		Number int
+	}
+
+	type Access struct {
+		Person        Person
+		HasPermission bool
+		LastAccessed  time.Time
+	}
+
+	access := &Access{
+		Person:        Person{Name: "fatih", Number: 1234567},
+		LastAccessed:  time.Now(),
+		HasPermission: true,
+	}
+
+	// Create a new Struct type
+	s := New(access)
+
+	// Get the Field type for "Person" field
+	p := s.Field("Person")
+
+	// Get the underlying "Name field" and print the value of it
+	name := p.Field("Name")
+
+	fmt.Printf("Value of Person.Access.Name: %+v\n", name.Value())
+
+	// Output:
+	// Value of Person.Access.Name: fatih
+
+}
+
 func ExampleIsZero() {
 	type Server struct {
 		Name    string