show visibility and class vs instance per method

[bughit]

An individual method entry currently shows neither, you have to scroll, potentially a long way, to get to the section header which shows both (e.g. "public class methods")

[znz]

If you want to extend English document system, you can create a issue to https://github.com/ruby/rdoc.
Or https://github.com/rurema/bitclust for Japanese document system.