country directory not installed using npm package

[bratekarate]

When using the node package with npm install -g coronavirus-tracker-cli, the country directory is not installed. This results in the following error:

internal/modules/cjs/loader.js:628
    throw err;
    ^
Error: Cannot find module '../lib/country/us'
...

This is not an issue if using cd <source_dir> && npm install -g.