Poor windows users has no "Hello world" guide

Hello. Im stuck with Catch2 installation, it successfully installed in C:\Programm Files(x86)\Catch2

And now, as bad cmake user i dont know what to do.
Test project's CMake config still fail on find_package();

I must copy some files from install dir?
I must somehow specify search dir?
I have istall it in wrong directory?

Please, can you provide end-to-end guide for this.