title: How do I pass environment variable to Codeception YML file from command line?
body: <p>I see this sort of thing in Codeception YML files all the time:</p>
  
  <pre><code>modules:
      enabled:
          - PhpBrowser:
              url: '%URL%'
  </code></pre>
  
  <p>How do I pass "URL" to Codeception from the command line? Or any other way!</p>