Telligent Documentation - Is there any 'step by step' documentation about Telligent Community?

Telligent Documentation - Is there any 'step by step'  documentation about Telligent Community. Until recently there was a pretty good documentation @   https://community.telligent.com/documentation/w/telligent-community-10/54153/system-requirements. It was there last week. But not now!

Can anyone help me?