npm install, not installing config files

[anum]

I am using the steps mentioned here : https://developers.ripple.com/data-api.html#running-the-historical-database to eventually be able to connect to the Ripple Server.

When I am running the npm install command from inside the rippled-historical-database project folder, it is not downloading the config files.
It is mentioned in the tutorial that:
" The install script creates the required config files: config/api.config.json and config/import.config.json "

but these files are not being created in my case.