Mark Brimble has now released a version of the BizTalk Server Documenter for BizTalk 2013 R2 as the earlier version was not compatible due to the version of SSO Client having changed.

You can find this new version as well as version for BizTalk 2010 BizTalk 2013 and now also BizTalk 2016 at our GitHub site BizTalk Server Documenter