add complete example to README

README.md

@@ -142,6 +142,19 @@ if err := obj.Delete(w); err != nil {
 **Note:** don't rely on the assumption that the remote user agent (browser) will
 effectively delete the cookie. Evil users will try anything to break your site.
 
+### Complete example
+
+An complete example is provided [here](http://github.com/chmike/securecookie/example/main.go).
+
+Follow these steps to test the example:
+
+1. create a directory in /tmp and set it as the working directory: "mkdir /tmp/sctest; cd /tmp/sctest"
+2. create a file named `main.go` and copy the example code referenced above into it
+3. create a go.mod file: "go mod init example.com"
+4. run the server: "go run main.go"
+5. with your browser, request "http://localhost:8080/set/someValue" to set the secure cookie value
+6. with your browser, request "http://localhost:8080/val" to retriev the secure cookie value
+
 ## Benchmarking
 
 Encoding the cookie named "test" with value "some value". See benchmark functions