Add detailed provenance data like in npmjs.com #244

I suggest adding detailed provenance data at the bottom under the readme like here:

You can also add a link to the #provenance section in a simple shield badge tooltip:

The provenance data is obtained by the following link: https://www.npmjs.com/package/<package_name>/v/<version>/provenance

Example: https://www.npmjs.com/package/vitepress-plugin-llms/v/1.10.0/provenance