Documentation / Tutorials

Can someone point me to documentation / tutorials for ruby-gnome2?
Specifically, I’m looking for help with HtmlDocument and HtmlView in
gtkhtml2. Are there books being sold that provide good documentation?
I love examples.
I found a reference to the rd files for rbbr, so I downloaded and
installed them. What I see is “No document” to describe much of what is
there.
Thanx.
Alan


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