old_contents: """
  File to easily switch between configurations between production and
  development, etc.
  """
  
  import os
  
  
  # You must set each of these in your heroku environment with the heroku
  # config:set command. See README.md for more information.
  HEROKU_ENV_REQUIREMENTS = ('HEROKU', 'SECRET_KEY', 'GITHUB_CLIENT_ID',
                             'GITHUB_SECRET', 'DATABASE_URL',
                             'SQLALCHEMY_DATABASE_URI', 'REPO_OWNER',
                             'REPO_NAME')
  
  
  class Config(object):
      DEBUG = False
      CSRF_ENABLED = True
      GITHUB_CLIENT_ID = 'replace-me'
      GITHUB_SECRET = 'replace-me'
      HEROKU = False
      SECRET_KEY = 'not-a-good-value'
  
      # Details of the repo where all articles are stored.  The GITHUB_CLIENT_ID
      # and GITHUB_SECRET should allow full-access to this database.
      REPO_OWNER = None
      REPO_NAME = None
  
      # This should automatically be set by heroku if you've added a database to
      # your app.
      SQLALCHEMY_DATABASE_URI = os.environ['DATABASE_URL']
  
  
  class DevelopmentConfig(Config):
      DEBUG = True
  
new_contents: """
  File to easily switch between configurations between production and
  development, etc.
  """
  
  import os
  
  
  # You must set each of these in your heroku environment with the heroku
  # config:set command. See README.md for more information.
  HEROKU_ENV_REQUIREMENTS = ('HEROKU', 'SECRET_KEY', 'GITHUB_CLIENT_ID',
                             'GITHUB_SECRET', 'DATABASE_URL',
                             'SQLALCHEMY_DATABASE_URI', 'REPO_OWNER',
                             'REPO_NAME', 'REPO_OWNER_ACCESS_TOKEN')
  
  
  
  class Config(object):
      DEBUG = False
      CSRF_ENABLED = True
      GITHUB_CLIENT_ID = 'replace-me'
      GITHUB_SECRET = 'replace-me'
      HEROKU = False
      SECRET_KEY = 'not-a-good-value'
  
      # Details of the repo where all articles are stored.  The GITHUB_CLIENT_ID
      # and GITHUB_SECRET should allow full-access to this database.
      REPO_OWNER = None
      REPO_NAME = None
      REPO_OWNER_ACCESS_TOKEN = None
  
      # This should automatically be set by heroku if you've added a database to
      # your app.
      SQLALCHEMY_DATABASE_URI = os.environ['DATABASE_URL']
  
  
  class DevelopmentConfig(Config):
      DEBUG = True
  
subject: Add new environment variable so we can create articles with different committer and author