Killgrave's webpage problems

Hi Everyone,

When browsing through this project's web page I found out a few problems with the hyperlinks, for example in [This pages's](https://friendsofgo.github.io/killgrave/guide/concepts.html) Imposter Configuration Section hyperlink, after clinking it, we get nothing.

This particular problem is repeated on many other hyperlinks. 

I'd like to contribute fixing this, is it possible?
