title: Customize slack reminder message with today's date
body: <p>I was looking at reminders in Slack and they are great. I am able to successfully set a weekday reminder with a particular message. However, I would like to add today's date to the message. </p>
  
  <p>For e.g. I want the reminder to say:
  "Hey guys, this thread is for daily stand up meeting of <em>today's date</em>. Please provide your inputs"</p>
  
  <p>I dont find a way in Slack documentation to do this. Any ideas?</p>