New review comment by oynqr on void-packages repository

https://github.com/void-linux/void-packages/pull/28945#discussion_r579779941

Comment:
I have added a suggestion to link the rules, although I don't know if linking from something in /usr/share/doc to something in /etc is the proper way to do it.

Regarding the avahi patch, I have updated the dependency to avahi>=0.8, which does not need the patch.