doc: update README

README.md

@@ -112,6 +112,27 @@ statefulSet:
         secretName: "natsoperator-sample-server-config"
 ```
 
+## Development
+
+You can use [minikube](https://minikube.sigs.k8s.io/docs/) to test the operator.
+
+```shell
+minikube start
+```
+
+The operator can be built and tested using the following commands.
+
+```shell
+make generate
+make install
+```
+
+Then you can start the operator using the following command.
+
+```shell
+make up
+```
+
 ## License
 
 [Apache 2.0](/LICENSE)

go.mod

@@ -17,7 +17,6 @@ require (
 	k8s.io/api v0.31.3
 	k8s.io/apimachinery v0.31.3
 	k8s.io/client-go v0.31.3
-	k8s.io/utils v0.0.0-20240711033017-18e509b52bc8
 	sigs.k8s.io/controller-runtime v0.19.2
 	sigs.k8s.io/controller-tools v0.16.5
 )
@@ -89,6 +88,7 @@ require (
 	k8s.io/helm v2.17.0+incompatible // indirect
 	k8s.io/klog/v2 v2.130.1 // indirect
 	k8s.io/kube-openapi v0.0.0-20240228011516-70dd3763d340 // indirect
+	k8s.io/utils v0.0.0-20240711033017-18e509b52bc8 // indirect
 	sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd // indirect
 	sigs.k8s.io/structured-merge-diff/v4 v4.4.1 // indirect
 	sigs.k8s.io/yaml v1.4.0 // indirect