title: Docker command not found when running on Mac
body: <p>I'm trying to run the below code as instructed in the <a href="https://github.com/graphite-project/docker-graphite-statsd" rel="noreferrer">docker-graphite-statsd</a>:</p>
  <pre><code>docker run -d\
   --name graphite\
   --restart=always\
   -p 80:80\
   -p 2003-2004:2003-2004\
   -p 2023-2024:2023-2024\
   -p 8125:8125/udp\
   -p 8126:8126\
   graphiteapp/graphite-statsd
  </code></pre>
  <p>It gives this error:</p>
  <pre><code>$ sudo docker run -d --name graphite --restart=always -p 80:80 -p 2003-2004:2003-2004 -p 2023-2024:2023-2024 -p 8125:8125/udp -p 8126:8126 graphiteapp/graphite-statsd
  sudo: docker: command not found
  </code></pre>
  <p>This is on a Mac. I tried <code>brew install docker</code> but it made no difference.</p>
  <p>How do I resolve this?</p>