Landing page / Docs: "Guide" hyperlink goes to page with 404 message

[eirikove]

Description of the bug
Clicking on "Guide" in the top right corner removes the button demo and shows a 404 message.

To Reproduce
Steps to reproduce the behavior:

1. Go to https://valgeirb.github.io/vue3-popper/
2. Click on 'Guide' (top right corner)
3. New URL is https://valgeirb.github.io/vue3-popper/guide/what-is-vue-popper.html
4. It's the same as the landing page with a 404 message instead of the button demo

... assuming it's meant to link to this:
https://valgeirb.github.io/vue3-popper/guide/what-is-vue-3-popper.html

Expected behavior
Being taken to a new page with a guide

Screenshots