'split-md': command not found

[paul-kelleher]

Hello, I'm excited to use this package. I tried to install, and it seems to have gone well:

drive$ npm i split-md

up to date, audited 15 packages in 773ms

1 package is looking for funding
  run `npm fund` for details

found 0 vulnerabilities

But then I tried to use the script in the fashion you mention:

split-md 'Letters.md' '### v' '###' '' 10 true

And I got this:

-bash: split-md: command not found

Any idea what might be going on? Thanks!