title: Comments on In Xcode 7 playground is not showing is markup format
body: <p>I am trying to change the format for comments into markup format introduced in Xcode 7 playgrounds. I have clicked rendered markup in "Editor -> Show Rendered Markup. It does show the comments already written in the playground in markup format but doesn't simultaneously convert the ones I create in it. In order for that to be converted into markup format, I either have to close the playground file or change it to raw markup and then back to rendered markup. Isn't it supposed to convert it into markup format the same instant I type a new comment?</p>
  
  <p>Thanks in advance.</p>