diff --git a/README.md b/README.md
index 1a574bd..4d8ff39 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,11 @@
-# idkey
\ No newline at end of file
+# idkey
+golang argon2id 密码hash和验证
+# 安装方法
+go get -u github.com/xiaoqidun/idkey
+# 使用方法
+```go
+// 生成argon2id hash密码
+hash := idkey.Encode("admin")
+// 进行argon2id hash验证
+verify := idkey.Verify("admin", hash)
+```