diff --git a/README.md b/README.md
index efc4b710..a0389ba1 100644
--- a/README.md
+++ b/README.md
@@ -87,6 +87,9 @@ import "net/http"
 
 ### Use a vendor tool like [Govendor](https://github.com/kardianos/govendor)
 
+<details>
+<summary>How to use govendor tool details?</summary>
+
 1. `go get` govendor
 
 ```sh
@@ -117,6 +120,8 @@ $ curl https://raw.githubusercontent.com/gin-gonic/gin/master/examples/basic/mai
 $ go run main.go
 ```
 
+</details>
+
 ## Prerequisite
 
 Now Gin requires Go 1.6 or later and Go 1.7 will be required soon.