Wiki syntax available when publishing on pypi

[Luca]

A non python, but pypi only related question:

Where I can find a reference guide about all what I can do with the
text infos about a pypi egg published?
Looking at others guys code I lear how to make links, bold text,
italic, lists...
For example one time I found how to insert an image in the text, but I
don't remember how.

There is a official refence about this?

-- 
-- luca