title: Problem with using spacy.matcher.matcher.Matcher.add() method
body: <p>I am getting an error when trying to use spacy <code>matcher</code>:</p>
  <pre><code>~\Anaconda3\lib\site-packages\spacy\matcher\matcher.pyx in spacy.matcher.matcher.Matcher.add()
  TypeError: add() takes exactly 2 positional arguments (3 given)
  </code></pre>
  <p>Is there any alternate function for <code>spacy.matcher.matcher.Matcher.add()</code>?</p>