In Emulab portal, geni-lib conversion page refers to CloudLab docs
When you convert a profile to geni-lib, you get to look at the generated script before accepting the conversion.
That page has a link at the top that says, "How To Write a Genilib Script." It is a link to http://docs.cloudlab.us/geni-lib.html
Probably, this should refer to the portal-specific copy of the document.