Missing mention of max_availability parameter on reactor-developer-docs/api/reference/1.0/extension_packages/list.md

As far as I can tell, using filter[availability] does not work.

Cribbing from the Launch UI, I found that I need to use the query param, 'max_availability' with a value of 'private' (or 'public', or 'development' depending on the desired result).

Without the use of the 'max_availability' param, I am seeing development version returned which has a higher version than the extension package with public availability.