Can't access ArduCAM libraries

ArduCAM.com website directed me to the GitHub site for their products. Downloaded and installed zip file (Arduino-master"). IDE say file does not contain valid .h file. I think the problem is with the path and have tried renaming “Arduino-master” to ArduCAM without success.

Can anyone please tell me what I am doing wrong? Thanks.

Thanks to all who read my post. I figured out the solution today.

I'm very glad to see you solved your problem. It would be nice if you would take a minute to post a description of the solution you found. That will help anyone else with the same problem who later finds this thread while searching for information. I'm sure they would be very grateful.
Thanks!