Update README.md

README.md

@@ -11,6 +11,7 @@ I wanted a simple and fast HTTP GO Router, which supports regexp, that’s why I
 * [URL parameters](#url-parameters)
 * [Regex parameters](#regex-parameters)
 * [Routes groups](#routes-groups)
+* [Reverse Routing](#reverse-routing)
 * [Custom NotFoundHandler](#custom-notfoundhandler)
 * [Custom PanicHandler](#custom-panichandler)
 * [Middleware Chain Support](#middlewares-chain)
@@ -127,6 +128,42 @@ func main() {
 }
 ```
 
+### Reverse Routing
+
+```golang
+package main
+
+import (
+	"fmt"
+	"github.com/xujiajun/gorouter"
+	"net/http"
+)
+
+func main() {
+	mux := gorouter.New()
+
+	routeName1 := "user_event"
+	mux.GETAndName("/users/:user/events", func(w http.ResponseWriter, r *http.Request) {
+		w.Write([]byte("/users/:user/events"))
+	}, routeName1)
+
+	routeName2 := "repos_owner"
+	mux.GETAndName("/repos/{owner:\\w+}/{repo:\\w+}", func(w http.ResponseWriter, r *http.Request) {
+		w.Write([]byte("/repos/{owner:\\w+}/{repo:\\w+}"))
+	}, routeName2)
+
+	params := make(map[string]string)
+	params["user"] = "xujiajun"
+	fmt.Println(mux.Generate(http.MethodGet, routeName1, params)) // /users/xujiajun/events <nil>
+
+	params = make(map[string]string)
+	params["owner"] = "xujiajun"
+	params["repo"] = "xujiajun_repo"
+	fmt.Println(mux.Generate(http.MethodGet, routeName2, params)) // /repos/xujiajun/xujiajun_repo <nil>
+}
+
+```
+
 ### Custom NotFoundHandler
 
 ```golang