Need to add documentation for AlertTypes and Zones
**Is your feature request related to a problem? Please describe.**
Hello! I am trying to figure out how to only send Alerts when events are detected in a specific Zone.

Briefly looking at the code, this seems possible/supported, but reading the docs I don't see any info on Zones or even AlertTypes for that matter.

So 2 questions:

Is this currently supported?
If so, how does it work? Should this be added to the readme?

**Describe the solution you'd like**
Add documentation if it is supported

**Describe alternatives you've considered**
n/a

**Additional context**
n/a
