I can't find doc/rdoc/markup_reference.rb in the https://ruby.github.io/rdoc/
I think the best RDoc markup reference is in the file doc/rdoc/markup_reference.rb.
But it's hidden from the official documentation in https://ruby.github.io/rdoc/.
(Maybe it's because it's not in the lib folder? But, if that is the case, how do I config RDoc to include the doc folder into the output doc?)
I think it's a very important reference to be hidden from the documentation.
First of all, thanks for "best RDoc reference"!
The file started out in lib/, but a reviewer rightly pointed out that b/c it's not real library code, it should not be put where it may be required.
So I moved it to doc/, not realizing that from there it wouldn't be copied into ruby/ruby.
Very recently (< 48 hours ago), I've moved it to doc/rdoc/ and modified the copying mechanism to get it into ruby/ruby, where it will become righteous documentation. I'm not sure how long it takes to propagate into the doc, but if it doesn't turn up soon, I'll know there's a problem.
https://github.com/ruby/ruby/blob/master/doc/rdoc/markup_reference.rb appeared in ruby/ruby just 18 hours ago, so there may yet be hope.
I can find the updated version at https://docs.ruby-lang.org/en/master/RDoc/MarkupReference.html.
But not in https://ruby.github.io/rdoc/ yet.
The first link is enough for what I need, thank you. However, I still expect that will be in the last reference soon, since the first one is not so obvious/trivial to reach directly from the RDoc repository.
@sonysantos, may not have seen a year ago that this first cut covers only what was covered in the reference in the old Rdoc reference. There's much much more that can be done.
I didn't know that domain. But it says "rdoc 6.0.4 Documentaion", which is quite old. Who created and maintains it?
gh-pages is abandoned now. I'll migrate it with GHA.
Only for clarification, I've reached that page from the github repository main page.

I think that maybe gh-pages isn't the default approach anymore? And it would be very good to add an action triggered by changes to master. But we can still use the classic gh-pages approach. I think we need to add a .nojekyll file. And I personally don't like the rm_rf "*" that's in the current task, so I think the build should use /docs instead of the root. But other than that, it should work.
I updated the rake task with .nojekyll and some other safeguards here: #935. And I've verified that it works just fine here: https://nevans.github.io/rdoc/
https://ruby.github.io/rdoc/RDoc/MarkupReference.html is live now.
And I prepared to continuous deployment for https://ruby.github.io/rdoc/. We can see the latest documentation via github master branch.