We're working through a list of feedback one item at a time:
https://lists.gnu.org/archive/html/guix-devel/2024-01/msg00117.html

We have completed the first three items.

The next item reported is:

#+begin_quote
3.7 After System Installation
L27 Libera_Chat, why the underscore. It is colored as well for me so
I guess this is a special char. Should be anways just Libera Chat
#+end_quote

"Libera_Chat" is not, or no longer, in the docs (d3fe763fe3).  However, there are two variations present: "Libera Chat" and "Libera.Chat".

The attached change updates "Libera Chat" to the "Libera.Chat" stylization.

The network itself is inconsistent in self-reference and provides no guideline I could find on which form to use.  I opted for the "dot" version to make things consistent.  Because the URL is https://libera.chat, someone searching for the network by copy-paste may arrive at the homepage more directly than with the non-dot version.