title: BackgroundScheduler object has no attribute 'add_cron_job'
body: <p>When I try to run my program I get "AttributeError: 'BackgroundScheduler' object has no attribute 'add_cron_job'"
  When the program should correctly run. </p>
  
  <p>Looking at the docs. It seems out of date. Its being ran on Linux. </p>
  
  <pre><code>import requests
  import datetime
  import time
  from apscheduler.schedulers.background import BackgroundScheduler
  
  # Provide the webhook URL that Discord generated
  discord_webhook_url = 'super secrect URL'
  Scheduler = Scheduler()
  Scheduler.daemonic = False
  Scheduler.start()
  def job_function():
      # Get the BTC price from CoinDesk
      bitcoin_price_url = 'https://api.coindesk.com/v1/bpi/currentprice/BTC.json'
      data = requests.get(bitcoin_price_url).json()
      price_in_usd = data['bpi']['USD']['rate']
  
      # Post the message to the Discord webhook
      data = {
          "content": "&lt;@My Client ID&gt; Bitcoin price is currently at $" + price_in_usd + " USD"
  }
      requests.post(discord_webhook_url, data=data)
  
  Scheduler.add_cron_job(job_function,  minute='0-59')
  # the line above is where the error happenes. 
  </code></pre>
  
  <p>It should just run. and complete the function of posting a message of the BTC price to discord.</p>