title: where should I put docker-compose.yml
body: <p>When I pull the images from docker hub. Sometimes, I would like to run the images in a multi-container way. So I choose to use docker-compose. For example, I would run the <a href="https://hub.docker.com/_/zookeeper/" rel="noreferrer">zookeeper</a> in <a href="http://zookeeper.apache.org/doc/current/zookeeperStarted.html#sc_RunningReplicatedZooKeeper" rel="noreferrer">replicated mode</a>. I will new a file named docker-compose.yml, and run docker-compose up and wait for it to initialize completely. </p>
  
  <p>My question is what is proper directory I should put docker-compose.yml file into?</p>