text: Title: Docker containers on spaCy website are not working
  Body: <!-- NOTE: For questions or install related issues, please open a Discussion instead. -->
  
  ## How to reproduce the behaviour
  1. Go to "https://spacy.io/usage/rule-based-matching"
  2. Go to "Editable Code" block
  3. Select "Run" button
  
  Returns: "Connecting failed. Please reload and try again."
  
  <!-- Include a code example or the steps that led to the problem. Please try to be as specific as possible. -->
  
  ## Your Environment
  <!-- Include details of your environment. You can also type `python -m spacy info --markdown` and copy-paste the result here.-->
  * Operating System: 
  * Python Version Used:
  * spaCy Version Used:
  * Environment Information:
  