At time of writing this is unfortunately to be expected. As already mentioned on that wiki page. Quote from same page:
Archived instructions.
NOTE: The following archived instructions are most likely currently broken due to changes by upstream, The Tor Project. To resolve this issue, the user would have to proceed as per Free Support Principle. Please post in Whonix ™ forums to notify if this method is currently working, broken or if any solution has been found. To view the archived instructions, please press on Expand on the right.
Why is this difficult?
To learn why this is difficult, please press on Expand on the right.
Not outdated. These files are non-existing and to be created.
There’s a wiki issue:
Indeed. That’s only 1 step. Not the full instructions how to do that. Not properly contextualized. The full steps aren’t easy but the context should be added to the wiki indeed.
Thanks. I will update the wiki to reflect that.
To confirm:
There’s currently no easy solution and none should be expected unless someone contributes.