Update README.md

Author: j5ik2o

README.md

@@ -25,6 +25,7 @@ libraryDependencies += Seq(
   "com.github.j5ik2o" %% "docker-controller-scala-zookeeper" % version, // optional
   "com.github.j5ik2o" %% "docker-controller-scala-kafka" % version, // optional
   "com.github.j5ik2o" %% "docker-controller-scala-elasticsearch" % version, // optional
+  "com.github.j5ik2o" %% "docker-controller-scala-localstack" % version, // optional
 )
 ```
 
@@ -42,7 +43,7 @@ The `DockerController` for the corresponding preset is as follows. Please see th
 - [KafkaController](docker-controller-scala-kafka/src/main/scala/com/github/j5ik2o/dockerController/kafka/KafkaController.scala) / [KafkaControllerSpec](docker-controller-scala-kafka/src/test/scala/com/github/j5ik2o/dockerController/kafka/KafkaControllerSpec.scala)
 - [ZooKeeperController](docker-controller-scala-zookeeper/src/main/scala/com/github/j5ik2o/dockerController/zooKeeper/ZooKeeperController.scala) / [ZooKeeperControllerSpec](docker-controller-scala-zookeeper/src/test/scala/com/github/j5ik2o/dockerController/ZooKeeperControllerSpec.scala)
 - [ElasticsearchController](docker-controller-scala-elasticsearch/src/main/scala/com/github/j5ik2o/dockerController/elasticsearch/ElasticsearchController.scala) / [ElasticsearchControllerSpec](docker-controller-scala-elasticsearch/src/test/scala/com/github/j5ik2o/dockerController/elasticsearch/ElasticsearchControllerSpec.scala
-- [LocalStackController](main/docker-controller-scala-localstack/src/main/scala/com/github/j5ik2o/dockerController/localstack/LocalStackController.scala) / 
+- [LocalStackController](main/docker-controller-scala-localstack/src/main/scala/com/github/j5ik2o/dockerController/localstack/LocalStackController.scala) / [LocalStackControllerSpec](main/docker-controller-scala-localstack/src/test/scala/com/github/j5ik2o/dockerController/localstack/LocalStackControllerSpec.scala)
 
 ```scala
 class MySQLControllerSpec extends AnyFreeSpec with DockerControllerSpecSupport {