Update physics.json

corrected description

source/behavior/entities/format/components/physics.json

@@ -3,7 +3,7 @@
   "additionalProperties": false,
   "type": "object",
   "title": "Physics",
-  "description": "Defines a dynamic type jump control that will change jump properties based on the speed modifier of the mob.",
+  "description": "Defines physics properties of an actor, including if it is affected by gravity or if it collides with objects.",
   "required": [],
   "properties": {
     "has_collision": {