Documents about ddoc? and markdown in ddoc?

[dangbinghoo]

hi,

Is there any other documents related about ddoc usage? the only 
thing I can find is:

  https://dlang.org/spec/ddoc.html#using_ddoc_to_generate_examples

But I found it never mentioned something like $(LI a  list item), 
is there a full ddoc document available?

And, is there any info about using markdown in ddoc?

thanks!

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dangbinghoo