Extensions page in documentation is currently blank

[paddyroddy]

More to raise awareness
https://glass.readthedocs.io/latest/manual/extensions.html

[ntessore]

Yes, this is a leftover from a time when GLASS was essentially just the core namespace package, and the functionality was spread out over separate packages. Users found that very confusing, so now almost all of the functionality is in the base GLASS package, and glass.ext is the namespace for extensions.

Packages such as glass.ext.camb with extra dependencies (e.g., CAMB) would still be extensions, so not sure if the page in the documentation is superfluous now.