updated README.md
diff --git a/README.md b/README.md
index 88b8427..bfc938d 100644
--- a/README.md
+++ b/README.md
@@ -11,13 +11,13 @@
import dac "github.com/xinsnake/go-http-digest-auth-client"
// create a new digest authentication request
-dr := dac.NewRequest(userId, userId, method, endUri, payload)
+dr := dac.NewRequest(username, password, method, uri, payload)
response1, err := dr.Execute()
// check error, get response
// reuse the existing digest authentication request so no extra request is needed
-dr.UpdateRequest(userId, userId, "PUT", endUri, string(buf.Bytes()))
+dr.UpdateRequest(username, password, method, uri, payload)
response2, err := dr.Execute()
// check error, get response
