Update identity administration tasks section

[John Flores (BuckeyeGuyJFlo)]

Content runs on as a paragraph without new lines. Hard to read when rendered as it was.

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[John Flores (BuckeyeGuyJFlo)]

The rendering is really bad on the actual page. https://learn.microsoft.com/en-us/training/modules/explore-identity-azure-active-directory/6-define-identity-administration