title: gherkin.parser.ParseError in a good-looking file
body: <p>Gherkin fails with
  <code>gherkin.parser.ParseError: Parse error at some.feature:5. Found comment when expecting one of: examples, feature, scenario, scenario_outline, tag. (Current getState: tag)</code> with a some.feature that begins with</p>
  
  <pre><code># language: ru
  
  @atag
  @anothertag
  #@done
  
  Функционал: Некая фича
  </code></pre>