title: Can't enable keychain sharing on Xcode 8.0 beta 6
body: <p>So I'm trying to turn on the Keychain sharing in target capabilities, and I got this error message:</p>
  
  <p>Add the keychain sharing feature to your App ID.</p>
  
  <p><a href="https://i.stack.imgur.com/89Fwo.png" rel="noreferrer"><img src="https://i.stack.imgur.com/89Fwo.png" alt="enter image description here"></a></p>
  
  <p>The entitlements file is changed automatically when I turn on the Keychain Sharing. Anyone knows how to fix the second step? I did not find Keychain Sharing options for App ID in member centre. </p>
  
  <p><a href="https://i.stack.imgur.com/MMRtb.png" rel="noreferrer"><img src="https://i.stack.imgur.com/MMRtb.png" alt="enter image description here"></a></p>
  
  <p>Thanks!</p>