Fitnesse 23.1

Hello Folks, 
I am interested in using Fitnesse as a QA automation tool for my product. I have successfully imported Fitnesse 23.1 on the cloud, and I can access three menus: Automated Test Grid, Data Input, and All Fields. However, I am having difficulty locating documentation on how to use the Automated Testing application. Could someone please refer me to any helpful material such as documentation or videos that can assist me in learning and effectively using this application for test automation?
I need material for fitnesse 23.1.

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