title: Docker not showing up as an option for Python interpreter on PyCharm
body: <p>I have a dockerized project where the python interpreter sits in a container. When I work with PyCharm (macOS), it keeps on displaying a 'No Python interpreter configured for the project' message at the top. When I click on Add Interpreter, I get the categories on the left hand sideas follows:</p>
  <ul>
  <li>Virtualenv Environment</li>
  <li>Conda Environment</li>
  <li>System Interpreter</li>
  <li>Pipenv Environment</li>
  </ul>
  <p>Seems like all tutorials assume that Docker will be in that list. I have the Docker plugin enabled in PyCharm. When I click on Build, Execution, Deployment -&gt; Docker, I get the 'Connection Successful' message. I also have the Docker toolbar that I have set up with my docker compose file. It is aware that the images are up.</p>
  <p>Is there something that I am missing?</p>