TwentyEleven already puts rel=”author” links in the post byline. TwentyEleven does show author details on the author page so you just want AuthorSure to add the profile links beneath the bio.
This AuthorSure settings for TwentyEleven are:
Author Post Settings: Byline
Author Page Settings: hide title, bio = none, set icons only
Advanced Settings: Set HookInstance =2