package.json doesn't come with "watch" script.

[Cyklan]

In the documentation and CLI output it says

Next steps:
[...]
$ npm run watch

However when looking at the contents of a freshly generated project, there is no watch script in the package.json.

Steps to reproduce

1. Create a new project with npx create-tailwind-plugin
2. navigate to the project directory
3. run npm install
4. run npm run watch or check package.json