To use this config in-game you will have to put the file into your csgo/cfg
directory.
Normally, steam will create different folders on a per-user basis, so if you have multiple
accounts on one computer, some more work is required to avoid copying the configs.
If you only use one account on your computer, just go to your steam installation directory
(probably C:\Program Files (x86)\Steam
) and then into the userdata directory.
It will contain one directory with only numbers as a name. Go into that directory and then 730\local\cfg
.
Copy the configs there.
If you use multiple accounts you can restore the old behaviour of CSGO and make it read the config from its installation directory.
The approach differs between operation systems, so its best you search for instructions to set permanent environment variables yourself.
Once you know how to do it, create one called USRLOCALCSGO
and set it to the path to your CSGO installation directory including the csgo
subdirectory.
Now copy the configs into Counter-Strike Global Offensive\csgo\cfg
.