Links in block quotes don't get translated

[AllenDowney]

Here's an example from Think Bayes. The Markdown input is

If you were inclined to choose the second option, you are in good company.  The biologist [Stephen J. Gould wrote](https://sci-hub.tw/https://doi.org/10.1080/09332480.1989.10554932) :

> I am particularly fond of this example because I know that the [second] statement is least probable, yet a little [homunculus](https://en.wikipedia.org/wiki/Homunculus_argument) in my head continues to jump up and down, shouting at me, "but she can't just be a bank teller; read the description."

And the asciidoc output is

If you were inclined to choose the second option, you are in good
company. The biologist
https://sci-hub.tw/https://doi.org/10.1080/09332480.1989.10554932[Stephen
J. Gould wrote] :

____
I am particularly fond of this example because I know that the [second] statement is least probable, yet a little [homunculus](https://en.wikipedia.org/wiki/Homunculus_argument) in my head continues to jump up and down, shouting at me, "but she can't just be a bank teller; read the description."
____

So it looks like the first link has been translated and the second passed through.

[jph00]

Block quotes are treated as raw asciidoc in fastdoc. That's because asciidoc has all kinds of odd quoting rules inside quoted blocks which would complex complex parsing to handle automatically.