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@@ -2,6 +2,7 @@
 update domain record using AliCloud Go SDK.
 
 ### Usage
+- First, install Aliyun Go SDK by running `go get github.com/aliyun/alibaba-cloud-sdk-go/services/alidns`.
 - Create a AccessKey at https://usercenter.console.aliyun.com/.
 - Fill in `config.json` the AccessKey, secret, and the domain you'd setup.
 - To compile, just run `go build alidns.go`. *Run `go mod init alidns` first if needed.*