Extensive/Intensive reversed

[sbmlsecretary]

Cf https://groups.google.com/g/sbml-discuss/c/YnppAvLpMZA

Paul Lang points out that the terms 'intensive' and 'extensive' are reversed in our description of a rate rule, and need to be fixed.

Reported by: luciansmith

Original Ticket: sbml/sbml-specifications//370

[sbmlsecretary]

Seconded. Jannie Hofmeyr also noted this and suggested the change in a personal communication.

Original comment by: bgoli