[Doc-SIG] Cross-reference proposal

[Peter Funk]

Hi!

Tony J Ibbs (Tibs):
> Ka-Ping Yee reiterated a list of possible things to autodetect:
[...]
> Hmm. There are two answers:
> 
> T1. In "marked up" docstrings, none of the above should be autodetected.
> I'll get into why below, but basically mark it down as "I'm paranoid" for
> the moment.

Question: What is difference between a "marked up" docstring and a doc
string, which is not "marked up"?  This must be easy to detect.

Regards, Peter