Every .json file in this folder (not starting with an underscore) is a raid type.
Copy _template.json, rename the copy (for example goblins.json), edit it, and you have a new raid.
name = what players and settlers call the raid. mobs = "entity_id,weight,maxInThisRaid" (max -1 = unlimited).
message may use {name}, {count} and {town}. The folder is re-read at every raid, no restart needed.
