Add example to readme

Author: elgopher

README.md

@@ -17,3 +17,42 @@
 * ability to **rename keys** during conversion
 * ability to **omit keys** based on field name, value or tag etc.
 * ability to **map elements** during conversion
+
+## Installation
+
+```shell
+# Add mapify to your Go module:
+go get github.com/elgopher/mapify        
+```
+
+## Hello, world!
+
+```go
+package main
+
+import (
+	"fmt"
+
+	"github.com/elgopher/mapify"
+)
+
+// This example shows how to convert struct into map
+func main() {
+	s := SomeStruct{Field: "value"}
+
+	// create Mapper instance. Here default parameters are used.
+	mapper := mapify.Mapper{} 
+	// MapAny maps any object - this can be a struct, slice or map. The whole object is traversed in order to find
+	// all nested structs. Each struct will be converted to map[string]interface{}
+	result, err := mapper.MapAny(s)
+	if err != nil {
+		panic(err)
+	}
+
+	fmt.Printf("%+v", result) // map[Field:value]
+}
+
+type SomeStruct struct {
+	Field string
+}
+```

_examples/hello/hello.go

@@ -0,0 +1,27 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/elgopher/mapify"
+)
+
+// This example shows how to convert struct into map
+func main() {
+	s := SomeStruct{Field: "value"}
+
+	// create Mapper instance. Here default parameters are used.
+	mapper := mapify.Mapper{}
+	// MapAny maps any object - this can be a struct, slice or map. The whole object is traversed in order to find
+	// all nested structs. Each struct will be converted to map[string]interface{}
+	result, err := mapper.MapAny(s)
+	if err != nil {
+		panic(err)
+	}
+
+	fmt.Printf("%+v", result) // map[Field:value]
+}
+
+type SomeStruct struct {
+	Field string
+}