Split out the documentation of the -d option

[larsw]

Since it was mixed up with the image/tag description.

[PRMerger10]

@larsw : Thanks for your contribution! The author(s) have been notified to review your proposed change.

[VanMSFT]

Hello @larsw! Thanks for submitting this PR. Let me check on the changes and get back to you. Thanks!

[rothja]

@vin-yu @VanMSFT This looks right based on the docker run documentation here. I'm going to sign off on this change. Thanks, @larsw! I think these changes are only for the 2017 section of the article, so we should probably go back and make the same changes for the 2019 section. We can do that later or you're welcome to submit a new PR if you have time. #sign-off

[PRMerger20]

@rothja: I'm sorry - only the author of this article, @vin-yu, can sign off on your changes. But we do have an exception process - if you are on the Microsoft content or product team for this product area, you can ask the PR review team to review and merge it by sending mail to the techdocprs alias.