New comment by flexibeast on void-packages repository

https://github.com/void-linux/void-packages/pull/24028#issuecomment-669083671

Comment:
@mobinmob: That's okay! i'd forgotten about the existence of `66-update`. :-) Earlier i updated my PR for @teldra's void-docs fork to mention it, but it sounds like that text shouldn't be needed .... ?