FPGA design document of the Arria 10 Soc GHRD

Hello, All new friends,
I just download the Arria10 SOC GHRD project and compiled smoothly. I wonder is there a detailed FPGA design description for newbies like me. most of the case, there will be a design document for this complex design. I didn’t find it in the design file package. please give me a link.

Thank you,