title: Trigger Azure DevOps web hook's on bug description change
body: <p>I'm configuring a web hook to make a POST when tasks of type bug are changed in a project. I'd like Azure to make the POST only when the description of the bug changes, but I'm not seeing this option on the config modal
  <a href="https://i.stack.imgur.com/4ii1N.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/4ii1N.png" alt="enter image description here" /></a></p>
  <p>Is it possible to make this configuration? Is there any other field that's equivalent to the Discussion field?</p>