Documentation Site Problem

In the documentation site, both https://b1naryth1ef.github.io/disco/installation.html and https://b1naryth1ef.github.io/disco/bot_tutorial/first_steps.html have links to a /disco/intro.md page which doesn't exist. I believe this page is supposed to be between the two pages. Either the page needs to be added or the links fixed!

(The links are the arrows between pages)