structure: add travis, example and fix of pointer to struct

.travis.yml

@@ -0,0 +1,3 @@
+language: go
+go: 1.3
+

README.md

@@ -1,4 +1,36 @@
-structure
+# Structure [![GoDoc](https://godoc.org/github.com/fatih/structure?status.png)](http://godoc.org/github.com/fatih/structure) [![Build Status](https://travis-ci.org/fatih/structure.png)](https://travis-ci.org/fatih/structure)
 =========
 
-Utilities for Go structs
+Structure contains various utilitis to work with Go structs.
+
+## Install
+
+```bash
+go get github.com/fatih/structure
+```
+
+## Examples
+
+```go
+type Server struct {
+	Name    string
+	ID      int32
+	Enabled bool
+}
+
+s := &Server{
+	Name:    "Arslan",
+	ID:      123456,
+	Enabled: true,
+}
+
+m, err := ToMap(s)
+if err != nil {
+	panic(err)
+}
+
+fmt.Printf("%#v", m)
+// Output: map[string]interface {}{"Name":"Arslan", "ID":123456, "Enabled":true}
+
+```
+	

structure.go

@@ -17,18 +17,18 @@ func ToMap(in interface{}) (map[string]interface{}, error) {
 	out := make(map[string]interface{})
 
 	t := reflect.TypeOf(in)
+	v := reflect.ValueOf(in)
 
 	// if pointer get the underlying element≤
 	if t.Kind() == reflect.Ptr {
 		t = t.Elem()
+		v = v.Elem()
 	}
 
 	if t.Kind() != reflect.Struct {
 		return nil, ErrNotStruct
 	}
 
-	v := reflect.ValueOf(in)
-
 	for i := 0; i < t.NumField(); i++ {
 		field := t.Field(i)
 

structure_test.go

@@ -1,6 +1,7 @@
 package structure
 
 import (
+	"fmt"
 	"reflect"
 	"testing"
 )
@@ -82,3 +83,31 @@ func TestToMap_Tag(t *testing.T) {
 	}
 
 }
+
+func ExampleMap() {
+	type Server struct {
+		Name    string
+		ID      int32
+		Enabled bool
+	}
+
+	s := &Server{
+		Name:    "Arslan",
+		ID:      123456,
+		Enabled: true,
+	}
+
+	m, err := ToMap(s)
+	if err != nil {
+		panic(err)
+	}
+
+	fmt.Printf("%#v\n", m["Name"])
+	fmt.Printf("%#v\n", m["ID"])
+	fmt.Printf("%#v\n", m["Enabled"])
+	// Output:
+	// "Arslan"
+	// 123456
+	// true
+
+}