after cd in root:

1. npm init -y
2. npm i commander chalk (commander for cli, chalk for cli UI [optional])
3. add index.js in root
4. for linux: chmod +x index.js, for windows: skip step 4
5. add bin { "cliName":"pathToIndex.js"}
6. npm link (makes our cli globally accessible)
7. cliName --name YourName
8. to publish: npm login
9. npm publish, the cli is now available globally
10. to test by installation, firstly do: npm unlink -g cliName
11. then do npm i -g cliName
12. try testing, if it works, you can safely uninstall using npm uninstall cliName
13. after making changes, you can repeat all from step 8, but make sure to change version from package.json